7/16"-14 x 1-1/2" Grade 8 Flange Bolts (10-Pack) – Heavy-Duty Hex Flange Bolts Includes Flat Washers & Nylon Lock Nuts – High-Strength SAE J429 1.5" UNC Coarse Thread Bolts 10 Bolts, Washers, Nuts
7/16"-14 x 1-1/2" Grade 8 Flange Bolts (10-Pack) – Heavy-Duty Hex Flange Bolts Includes Flat Washers & Nylon Lock Nuts – High-Strength SAE J429 1.5" UNC Coarse Thread Bolts
These 7/16"-14 x 1-1/2" (1.5") long Grade 8 (G8) Bolts are engineered for applications where strength, reliability, and vibration resistance matter most. Each pack combines 10 high-strength Grade 8 (G8) hex flange bolts, 10 matching nylon locking hex nuts, 10 flat washers for load distribution. Designed for use in automotive repairs, trailer builds, agricultural equipment, shop machinery, and structural assemblies, this kit eliminates the need to source parts separately—saving time while ensuring proper fit and performance. Whether you’re a professional mechanic, fabricator, or serious DIYer, this fastener kit delivers the confidence of industrial-grade hardware in a convenient, ready-to-use package.
Product Features
- Complete 10-packs: Includes 10 Grade 8 hex flange bolts 10 hardened flat washers, and 10 nylon Grade 8 lock nuts everything you need for strong, vibration-resistant fastening in one convenient pack. Bolts 7/16" diameter x 1.5" long. Nuts and washers fit 7/16" bolts.
- Grade 8 Strength for Demanding Jobs: High-tensile SAE J429 Grade 8 Flange Bolts deliver superior load capacity and shear strength, making this kit ideal for automotive, trailer, machinery, and structural applications. Threads are made to the requirements of ASME B1.1. ASME B18.6.3 Dimensional Requirements. SAE J429 Material and Strength Level. ASTM F788 Surface Discontinuities. ASME B18.18 Inspection and Quality Assurance.
- Ultimate Nylon Locking System: Grade N8 Nylon nuts with hardened washers help prevent loosening under torque, shock, and movement perfect for equipment that sees constant vibration or cyclic loads. Grade N8 nuts compatible with Grade 8 fastenting system. Nylon rated for up to 250 degrees F. Nuts SAE J995, Hardness HRC 24/32. All washers are hardened, which is compatible with a Grade 8 fastening system.
- Precision-Matched Components: All fasteners are 7/16"-14 UNC coarse thread 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.