9th Jul 2026, 08:29 AM

3 /8-16 x 4 Hex Cap Screw Grade 8, Zinc Yellow Plated Steel, Coarse Thread UNC, Partially Threaded with 1 inch Thread Length - Made in USA (50 Pack)

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$91.99

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Lowest: $91.99

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You can check the price history of 3 /8-16 x 4 Hex Cap Screw Grade 8, Zinc Yellow Plated Steel, Coarse Thread UNC, Partially Threaded with 1 inch Thread Length - Made in USA (50 Pack) here. This product's current Price in USA is $91.99. The average and highest prices are $91.99 and $91.99 respectively.

Lowest Ever Price	$91.99
9th Mar 2026
Average Price	$91.99
Based on 132 days price tracking
Highest Price	$91.99
9th Mar 2026

Price History of All Variants of 3 8-16 x 4 Hex Cap Screw...

Offer Price: $40.99

3/8"-16 x 7 Hex Cap Screws, Grade 8 Alloy Steel, Zinc Yellow, 10 Pack | Partially Threaded. 1.25" thread length. Hex head with washer face. ASME B18.2.1.

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Offer Price: $200.99

3/8"-16 x 4-3/4" Hex Cap Screws, Grade 8 Alloy Steel, Zinc Yellow, 50 Pack | Partially Threaded. 1" thread length. Hex head with washer face. ASME B18.2.1. Hex bolts.

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Offer Price: $3,054.99

3/8"-16 x 5 Hex Cap Screws, Grade 8 Alloy Steel, Zinc Yellow, 225 Pack | Partially Threaded. 1" thread length. Hex head with washer face. ASME B18.2.1. Hex bolts.

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Offer Price: $203.99

3/8"-16 x 4 Hex Cap Screws, Grade 8 Alloy Steel, Zinc Yellow, 250 Pack | Partially Threaded. 1" thread length. Hex head with washer face. ASME B18.2.1. Hex bolts.

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Offer Price: $95.99

3/8"-16 x 2 Hex Cap Screws, Grade 8 Alloy Steel, Zinc Yellow, 100 Pack | Partially Threaded. 1" thread length. Hex head with washer face. ASME B18.2.1. Hex bolts.

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Offer Price: $130.99

3/8"-16 x 6 Hex Cap Screws, Grade 8 Alloy Steel, Zinc Yellow, 50 Pack | Partially Threaded. 1" thread length. Hex head with washer face. ASME B18.2.1. Hex bolts.

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Offer Price: $215.99

3/8"-16 x 3-1/2" Hex Cap Screws, Grade 8 Alloy Steel, Zinc Yellow, 300 Pack | Partially Threaded. 1" thread length. Hex head with washer face. ASME B18.2.1. Hex bolts.

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Offer Price: $91.99

3/8-16 x 4 Hex Cap Screw Grade 8, Zinc Yellow Plated Steel, Coarse Thread UNC, Partially Threaded with 1" Thread Length - Made in USA (50 Pack)

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Offer Price: $188.99

3/8"-16 x 3 Hex Cap Screws, Grade 8 Alloy Steel, Zinc Yellow, 325 Pack | Partially Threaded. 1" thread length. Hex head with washer face. ASME B18.2.1. Hex bolts.

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Offer Price: $237.99

3/8"-16 x 2-3/4" Hex Cap Screws, Grade 8 Alloy Steel, Zinc Yellow, 400 Pack | Partially Threaded. 1" thread length. Hex head with washer face. ASME B18.2.1. Hex bolts.

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Offer Price: $225.99

3/8"-16 x 4-3/4" Hex Cap Screws, Grade 8 Alloy Steel, Zinc Yellow, 225 Pack | Partially Threaded. 1" thread length. Hex head with washer face. ASME B18.2.1. Hex bolts.

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Offer Price: $499.99

3/8"-16 x 6-1/2" Hex Cap Screws, Grade 8 Alloy Steel, Zinc Yellow, 175 Pack | Partially Threaded. 1.25" thread length. Hex head with washer face. ASME B18.2.1. Hex bolts.

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Offer Price: $200.99

3/8"-16 x 3-3/4" Hex Cap Screws, Grade 8 Alloy Steel, Zinc Yellow, 250 Pack | Partially Threaded. 1" thread length. Hex head with washer face. ASME B18.2.1. Hex bolts.

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Offer Price: $348.99

3/8"-16 x 1/2" Hex Cap Screws, Grade 8 Alloy Steel, Zinc Yellow, 1300 Pack | Fully Threaded. Hex head with washer face. ASME B18.2.1. High strength hex bolts for automotive and structural use.

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Offer Price: $213.99

3/8"-16 x 1-1/2" Hex Cap Screws, Grade 8 Alloy Steel, Zinc Yellow, 675 Pack | Partially Threaded. 1" thread length. Hex head with washer face. ASME B18.2.1. Hex bolts.

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Offer Price: $217.99

3/8"-16 x 1-3/8" Hex Cap Screws, Grade 8 Alloy Steel, Zinc Yellow, 675 Pack | Fully Threaded. Hex head with washer face. ASME B18.2.1. High strength hex bolts for automotive and structural use.

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Offer Price: $111.99

3/8"-16 x 2-1/2" Hex Cap Screws, Grade 8 Alloy Steel, Zinc Yellow, 100 Pack | Partially Threaded. 1" thread length. Hex head with washer face. ASME B18.2.1.

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Offer Price: $203.99

3/8"-16 x 4-1/4" Hex Cap Screws, Grade 8 Alloy Steel, Zinc Yellow, 225 Pack | Partially Threaded. 1" thread length. Hex head with washer face. ASME B18.2.1. Hex bolts.

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Offer Price: $302.99

3/8"-16 x 5-3/4" Hex Cap Screws, Grade 8 Alloy Steel, Zinc Yellow, 175 Pack | Partially Threaded. 1" thread length. Hex head with washer face. ASME B18.2.1. Hex bolts.

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Offer Price: $66.99

3/8"-16 x 5/8" Hex Cap Screws, Grade 8 Alloy Steel, Zinc Yellow, 100 Pack | Fully Threaded. Hex head with washer face. ASME B18.2.1. High strength for automotive and structural use.

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Offer Price: $215.99

3/8"-16 x 1-3/4" Hex Cap Screws, Grade 8 Alloy Steel, Zinc Yellow, 600 Pack | Partially Threaded. 1.25" thread length. Hex head with washer face. ASME B18.2.1. Hex bolts.

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Offer Price: $55.99

3/8"-16 x 7/8" Hex Cap Screws, Grade 8 Alloy Steel, Zinc Yellow, 100 Pack | Fully Threaded. Hex head with washer face. ASME B18.2.1. High strength for automotive and structural use.

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Offer Price: $218.99

3/8"-16 x 1-1/4" Hex Cap Screws, Grade 8 Alloy Steel, Zinc Yellow, 800 Pack | Fully Threaded. Hex head with washer face. ASME B18.2.1. High strength hex bolts for automotive and structural use.

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Offer Price: $245.99

3/8"-16 x 8 Hex Cap Screws, Grade 8 Alloy Steel, Zinc Yellow, 50 Pack | Partially Threaded. 1.25" thread length. Hex head with washer face. ASME B18.2.1. Hex bolts.

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Offer Price: $315.99

3/8"-16 x 5-1/4" Hex Cap Screws, Grade 8 Alloy Steel, Zinc Yellow, 200 Pack | Partially Threaded. 1" thread length. Hex head with washer face. ASME B18.2.1.

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Offer Price: $86.99

3/8"-16 x 3-3/4" Hex Cap Screws, Grade 8 Alloy Steel, Zinc Yellow, 50 Pack | Partially Threaded. 1" thread length. Hex head with washer face. ASME B18.2.1.

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Offer Price: $327.99

3/8"-16 x 5-3/4" Hex Cap Screws, Grade 8 Alloy Steel, Zinc Yellow, 50 Pack | Partially Threaded. 1" thread length. Hex head with washer face. ASME B18.2.1. Hex bolts.

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Offer Price: $90.99

3/8 inch x 1-3/8 inch Hex Cap Screw Grade 8 Zinc Yellow Plated Steel (Quantity: 100 pcs) 3/8-16 x 1 3/8 Hex Bolt/Coarse Thread/Fully Threaded

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Offer Price: $96.99

3/8 inch x 1-5/8 inch Hex Cap Screw Grade 8 Zinc Yellow Plated Steel (Quantity: 100 pcs) 3/8-16 x 1 5/8 Hex Bolt/Coarse Thread/Partially Threaded 1 inches of Thread

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Offer Price: $375.99

3/8"-16 x 7-1/2" Hex Cap Screws, Grade 8 Alloy Steel, Zinc Yellow, 150 Pack | Partially Threaded. 1.25" thread length. Hex head with washer face. ASME B18.2.1.

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Offer Price: $75.99

3/8"-16 x 1-1/2" Hex Cap Screws, Grade 8 Alloy Steel, Zinc Yellow, 100 Pack | Partially Threaded. 1" thread length. Hex head with washer face. ASME B18.2.1.

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Offer Price: $248.99

3/8"-16 x 7 Hex Cap Screws, Grade 8 Alloy Steel, Zinc Yellow, 150 Pack | Partially Threaded. 1.25" thread length. Hex head with washer face. ASME B18.2.1. Hex bolts.

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Offer Price: $103.99

3/8"-16 x 2-1/4" Hex Cap Screws, Grade 8 Alloy Steel, Zinc Yellow, 100 Pack | Partially Threaded. 1" thread length. Hex head with washer face. ASME B18.2.1. Hex bolts.

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Offer Price: $130.99

3/8"-16 x 3 Hex Cap Screws, Grade 8 Alloy Steel, Zinc Yellow, 100 Pack | Partially Threaded. 1" thread length. Hex head with washer face. ASME B18.2.1. Hex bolts.

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Offer Price: $110.99

3/8 inch x 5 inch Hex Cap Screw Grade 8 Zinc Yellow Plated Steel (Quantity: 50 pcs) 3/8-16 x 5 Hex Bolt/Coarse Thread/Partially Threaded 1 inches of Thread

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Offer Price: $208.99

3/8"-16 x 6 Hex Cap Screws, Grade 8 Alloy Steel, Zinc Yellow, 175 Pack | Partially Threaded. 1" thread length. Hex head with washer face. ASME B18.2.1.

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Offer Price: $45.99

3/8"-16 x 1/2" Hex Cap Screws, Grade 8 Alloy Steel, Zinc Yellow, 100 Pack | Fully Threaded. Hex head with washer face. ASME B18.2.1. High strength hex bolts for automotive and structural use.

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Offer Price: $125.99

3/8"-16 x 2-3/4" Hex Cap Screws, Grade 8 Alloy Steel, Zinc Yellow, 100 Pack | Partially Threaded. 1" thread length. Hex head with washer face. ASME B18.2.1. Hex bolts.

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Offer Price: $225.99

3/8"-16 x 3/4" Hex Cap Screws, Grade 8 Alloy Steel, Zinc Yellow, 1100 Pack | Fully Threaded. Hex head with washer face. ASME B18.2.1. High strength hex bolts for automotive and structural use.

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Offer Price: $58.99

3/8 inch x 1 inch Hex Cap Screw Grade 8 Zinc Yellow Plated Steel (Quantity: 100 pcs) 3/8-16 x 1 Hex Bolt/Coarse Thread/Fully Threaded

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Offer Price: $76.99

3/8"-16 x 3-1/4" Hex Cap Screws, Grade 8 Alloy Steel, Zinc Yellow, 50 Pack | Partially Threaded. 1" thread length. Hex head with washer face. ASME B18.2.1.

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Offer Price: $188.99

3/8"-16 x 4-1/4" Hex Cap Screws, Grade 8 Alloy Steel, Zinc Yellow, 50 Pack | Partially Threaded. 1" thread length. Hex head with washer face. ASME B18.2.1. Hex bolts.

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Offer Price: $85.99

Hex Cap Screw (ASME B18.2.1) Made in USA, 3/8-16 UNC (Coarse) x 1-3/4 inches (Measured from Under Head) Partially Threaded Hex (Washer Face Bearing Surface) SAE J429 Grade 8

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Offer Price: $238.99

3/8"-16 x 1-5/8" Hex Cap Screws, Grade 8 Alloy Steel, Zinc Yellow, 650 Pack | Partially Threaded. 1" thread length. Hex head with washer face. ASME B18.2.1. Hex bolts.

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Offer Price: $227.99

3/8"-16 x 2 Hex Cap Screws, Grade 8 Alloy Steel, Zinc Yellow, 550 Pack | Partially Threaded. 1" thread length. Hex head with washer face. ASME B18.2.1. Hex bolts.

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Offer Price: $212.99

3/8"-16 x 1 Hex Cap Screws, Grade 8 Alloy Steel, Zinc Yellow, 900 Pack | Fully Threaded. Hex head with washer face. ASME B18.2.1. High strength for automotive and structural use.

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Offer Price: $347.99

3/8"-16 x 5/8" Hex Cap Screws, Grade 8 Alloy Steel, Zinc Yellow, 1200 Pack | Fully Threaded. Hex head with washer face. ASME B18.2.1. High strength hex bolts for automotive and structural use.

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Offer Price: $233.99

3/8 inch x 7/8 inch Hex Cap Screw Grade 8 Zinc Yellow Plated Steel (Quantity: 1000 pcs) 3/8-16 x 7/8 Hex Bolt/Coarse Thread/Fully Threaded

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Offer Price: $198.99

3/8"-16 x 2-1/2" Hex Cap Screws, Grade 8 Alloy Steel, Zinc Yellow, 400 Pack | Partially Threaded. 1" thread length. Hex head with washer face. ASME B18.2.1. Hex bolts.

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Offer Price: $210.99

3/8"-16 x 2-1/4" Hex Cap Screws, Grade 8 Alloy Steel, Zinc Yellow, 450 Pack | Partially Threaded. 1" thread length. Hex head with washer face. ASME B18.2.1. Hex bolts.

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Offer Price: $101.99

3/8 inch x 4-1/2 inch Hex Cap Screw Grade 8 Zinc Yellow Plated Steel (Quantity: 50 pcs) 3/8-16 x 4 1/2 Hex Bolt/Coarse Thread/Partially Threaded 1 inches of Thread

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Offer Price: $41.99

3/8"-16 x 7-1/2" Hex Cap Screws, Grade 8 Alloy Steel, Zinc Yellow, 10 Pack | Partially Threaded. 1.25" thread length. Hex head with washer face. ASME B18.2.1. Hex bolts.

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Offer Price: $345.99

3/8"-16 x 8 Hex Cap Screws, Grade 8 Alloy Steel, Zinc Yellow, 150 Pack | Partially Threaded. 1.25" thread length. Hex head with washer face. ASME B18.2.1. Hex bolts.

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Offer Price: $213.99

3/8"-16 x 4-1/2" Hex Cap Screws, Grade 8 Alloy Steel, Zinc Yellow, 225 Pack | Partially Threaded. 1" thread length. Hex head with washer face. ASME B18.2.1. Hex bolts.

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Offer Price: $120.99

3/8"-16 x 5-1/2" Hex Cap Screws, Grade 8 Alloy Steel, Zinc Yellow, 50 Pack | Partially Threaded. 1" thread length. Hex head with washer face. ASME B18.2.1. Hex bolts.

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Offer Price: $325.99

3/8"-16 x 3-1/4" Hex Cap Screws, Grade 8 Alloy Steel, Zinc Yellow, 325 Pack | Partially Threaded. 1" thread length. Hex head with washer face. ASME B18.2.1. Hex bolts.

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Offer Price: $310.99

3/8 inch x 5-1/4 inch Hex Cap Screw Grade 8 Zinc Yellow Plated Steel (Quantity: 50 pcs) 3/8-16 x 5 1/4 Hex Bolt/Coarse Thread/Partially Threaded 1 inches of Thread

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Offer Price: $81.99

3/8"-16 x 3-1/2" Hex Cap Screws, Grade 8 Alloy Steel, Zinc Yellow, 50 Pack | Partially Threaded. 1" thread length. Hex head with washer face. ASME B18.2.1.

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Offer Price: $50.99

3/8"-16 x 3/4" Hex Cap Screws, Grade 8 Alloy Steel, Zinc Yellow, 100 Pack | Fully Threaded. Hex head with washer face. ASME B18.2.1. High strength hex bolts for automotive and structural use.

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Offer Price: $275.99

3/8"-16 x 5-1/2" Hex Cap Screws, Grade 8 Alloy Steel, Zinc Yellow, 175 Pack | Partially Threaded. 1" thread length. Hex head with washer face. ASME B18.2.1. Hex bolts.

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Offer Price: $47.99

3/8"-16 x 1-1/4" Hex Cap Screws, Grade 8 Alloy Steel, Zinc Yellow, 100 Pack | Fully Threaded. Hex head with washer face. ASME B18.2.1. High strength for automotive and structural use.

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Current Price in USA

Price	$91.99

Product Information

Details

Product Name	3 /8-16 x 4 Hex Cap Screw Grade 8, Zinc Yellow Plated Steel, Coarse Thread UNC, Partially Threaded with 1 inch Thread Length - Made in USA (50 Pack)
Store Product Code	B0D1YKZ4ZT
Store Name	amazon.com
Rating	10 / 10
Category	Hex Bolts
Product Manufacturer	Ecom Fasteners
Size	3/8-16 x 4 inch

Features

GRADE 8 HIGH-STRENGTH STEEL: Meets SAE J429 specifications with minimum tensile strength of 150,000 PSI and proof load of 120,000 PSI the highest strength grade for standard carbon steel hex cap screws, essential for critical structural and high-stress applications
PROUDLY MADE IN USA: Domestically manufactured from American-sourced steel with full material traceability; supports US manufacturing jobs while ensuring consistent quality control and compliance with Buy American Act requirements
ZINC YELLOW CHROMATE FINISH: Distinctive gold-colored plating provides superior corrosion resistance compared to clear zinc while serving as instant visual identification of Grade 8 strength; meets 96-hour salt spray requirements per ASTM B117
Manufactured to ASME B18.2.1 & SAE J429 specifications
Tensile Strength: 150,000 psi. min
PARTIALLY THREADED SHANK DESIGN: 1 inch of thread engagement with 3 inches of unthreaded grip length smooth shank acts as a dowel pin to resist shear loads while threads provide clamping force without binding in the hole
3/8-16 UNC COARSE THREAD: 0.375" diameter with 16 threads per inch offers fast assembly, excellent performance in tapped holes, and superior resistance to stripping compared to fine thread in most applications

Images

Image of 3 /8-16 x 4 Hex Cap Screw Grade 8, Zinc Yellow Plated Steel, Coarse Thread UNC, Partially Threaded with 1 inch Thread Length - Made in USA (50 Pack)

Rating and Reviews

10 Based on 3 reviews

3 8-16 x 4 Hex Cap Screw has 10 rating out of 10. This average rating is consist of 3 individual ratings. You can rate this product at product review page.