GM Body Bolt 15783 – 5/16"-18 x 7/8" Indented Hex SEMS | Phosphate | Qty 50
gm-body-bolt-15783 – 5/16"-18 x 7/8" Indented Hex SEMS | Phosphate | Qty 50
The gm-body-bolt-15783 is an OEM-correct indented hex SEMS body bolt designed for GM restoration and assembly projects. Each gm-body-bolt-15783 features a 5/16"-18 thread, 7/8" length, CA point, and 3/4" washer for precise alignment and secure fastening.
With a phosphate finish that resists corrosion and maintains a factory-correct
appearance, the gm-body-bolt-15783 is ideal for automotive restorers, repair shops, and enthusiasts looking for exact OEM replacements.
Product Details
OEM-correct GM body bolts for fenders and panels
Indented hex SEMS head with 3/4" washer for strong fastening
CA point for accurate alignment during installation
Phosphate finish for corrosion resistance and OEM look
Ideal for restoration, repair, and body panel assembly
Specifications:
Head Style: Indented Hex SEMS
Screw Size: 5/16 in.-18
Length: 7/8 in.
Across Flats: 1/2 in.
Washer Diameter: 3/4 in.
Point Type: CA
Finish: Phosphate
Quantity: 50 Pieces
SKU: 15783
OEM Numbers:
12337916 — GM
3846202 — GM
Why Buy From East Coast Bolts
OEM-correct and restoration-grade fasteners
Trusted quality for classic GM restorations
Fast shipping and dependable service
We won’t screw you, but our fasteners will.™

