You can check the price history of 3 /8 inch-16 x 5-1 /2 inch Grade 8 Bolts (4-Pack) - Heavy-Duty Hex Bolts with Flat Washers & Nylon Lock Nuts - High-Strength SAE Anti-Vibration 5.5 inch Coarse Bolts for Automotive, Machinery & Construction here.
Product Information
Details
Product Name
3 /8 inch-16 x 5-1 /2 inch Grade 8 Bolts (4-Pack) - Heavy-Duty Hex Bolts with Flat Washers & Nylon Lock Nuts - High-Strength SAE Anti-Vibration 5.5 inch Coarse Bolts for Automotive, Machinery & Construction
Store Product Code
B0GPGYPKL8
Store Name
amazon.com
Category
Hex Bolts
Color
Yellow Zinc
Features
Complete 4-packs: Includes 4 Grade 8 hex bolts, 4 hardened flat washers, 4 Grade 8 nylon lock nuts everything you need for strong, vibration-resistant fastening in one convenient pack. Bolts 3/8" x 5.5" long. Nuts and washers fit 3/8" bolts.
Grade 8 Strength for Demanding Jobs: High-tensile SAE J429 Grade 8 bolts and nuts deliver superior load capacity and shear strength, making this kit ideal for automotive, trailer, machinery, and structural applications. All washers are hardened, which is compatible with a Grade 8 fastening system. Threads are made to the requirements of ASME B1.1. ASME B18.2.1 Dimensional Requirements. SAE J429 Material and Strength Level. ASTM A564 Material and Strength Level. ASTM F788 Surface Discontinuities. ASME B18.18 Inspection and Quality Assurance.
Utimate Anti-Vibration Nylon Locking System: washers help prevent loosening under torque, shock, and movement perfect for equipment that sees constant vibration or cyclic loads.
Precision-Matched Components: All fasteners are 3/8"-16 UNC for reliable fit and consistent clamping force across every assembly no mismatched hardware, no guesswork.
Built for Pros & Serious DIYers: Whether youre repairing equipment, building fixtures, or assembling heavy components, this kit delivers industrial-grade reliability in a compact, easy-to-store format.
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