5/16-18 x 1-1/2 Indented Hex Washer Head Tapping Bolts – Phosphate (Qty 50)

5/16-18 x 1-1/2 Indented Hex Washer Head Tapping Bolts – Phosphate & Oil (Qty 50)
SKU: 12009
These indented hex washer head tapping bolts are widely used for body and bracket mounting where thread-forming in steel is required. The phosphate & oil finish gives an OEM-style appearance while resisting corrosion during assembly.
Product Details
Head Style: Indented Hex Washer
Thread Size: 5/16-18
Length: 1-1/2 in.
Hex Size (Across Flats): 1/2 in.
Washer Diameter: 21/32 in.
Screw Type: Thread-Forming / Tapping
Point Type: CA
Finish: Phosphate & Oil
Quantity: 50 pcs
Country: USA
SKU: 12009
Why Buy From East Coast Bolts
OEM-correct hardware for restoration & repair
Clean, labeled packaging keeps builds organized
Real support from a real shop — not a warehouse seller
Common Uses
Body panels
Fender brackets
Core support assemblies
Sheet metal frame tie-in points
Shipping & Guarantee
Ships from Winchester, VA
60-day returns
East Coast Bolts — “We won’t screw you, but our fasteners will.™”