Bulk 5/16"-12 x 1-1/2" Indented Hex Washer Head Self-Tapping Screws (Type AB) – Zinc CR+3 – Monster Bolts Wrenchworx2 Serrated Flange: Integral locking teeth

Serrated Flange: Integral locking teeth resist loosening under shock and vibration

Material: 18-8 Stainless Steel (A2)

Radius Under Head: Reduces stress concentrations

1/2"-13 Socket Head Cap Screws

This design enhances torque-tension characteristics

Bulk 5/16"-12 x 1-1/2" Indented Hex Washer Head Self-Tapping Screws (Type AB) – Zinc CR+3 – Monster Bolts Wrenchworx2 Serrated Flange: Integral locking teethMonster Overview: Fix your project right the first time with Bulk 5 16" Type AB Indented Hex Washer Head Self Tapping Screws from Monster Bolts. Designed for demanding applications, these fasteners use a Type AB self tapping thread to form strong, reliable threads in metal or wood without pre tapping. The hex washer head (HWH) with integral indentation provides a wide bearing surface for improved load distribution and resistance to pull through. The