Monster Bolts Flat Head Socket Cap Screws (Inch) — ASME B18.3, 82° countersunk, Allen drive, alloy steel black oxide & stainless

Flat Head Socket Cap Screws (Inch) – 82° Countersink

16 products

Showing 1 - 16 of 16 products

Flat Head Socket Cap Screws (Inch) provide a true countersunk, flush fit for panels, covers, and assemblies that require snag-free surfaces. With an internal Allen/hex key drive, they deliver both strength and a clean finish.

Available in black oxide alloy steel (light oil, recommended for indoor use) and 18-8 stainless steel for corrosion resistance. Monster Bolts stocks popular Inch sizes from #4-40 through 1/4-28 fine thread with fast shipping.

ASME B18.3 82° Countersink Allen / Hex Drive Alloy Steel & 18-8 Stainless

Why Choose Monster Bolts Flat Head Screws?

Flush Install: 82° countersunk head seats level with panels and covers.
Standards-Based: Meets ASME B18.3 dimensions for consistent fit and torque.
Material Options: Choose stainless for corrosion resistance or black oxide for indoor precision builds.
Reliable Quality: Crisp hex sockets and accurate threads ensure dependable fastening.

Need other socket screw styles? Explore Socket Caps, Button Heads, and Set Screws.

Need help confirming head angle or size? Call (850) 764-2658 or email support@MonsterBolts.com — we’ll make sure you get the right fastener for the job.

Showing 1 - 16 of 16 products