Cheap 3/8 X 1″ Type A Self Tapping Sheet Metal Screws Indented Hex Washer Head Unslotted Drive 18/8 Stainless Steel (300/Pkg.)

Type A Self Tapping Sheet Metal Screws provide secure thread engagement in sheet metal assemblies with minimal pre-drilling.

They are 3/8 inch diameter by 1 inch length, made from 18/8 Stainless Steel with an indented hex washer head and unslotted drive.

Specs

Dimensions: 3/8 inch diameter, 1 inch length

Drive type: Unslotted

Material grade: 18/8 Stainless Steel (304)

Features

Self tapping capability: Direct fastening into sheet metal without pre-drilling, reducing installation steps and equipment wear.

Indented hex washer head: Flush seating with load distribution to minimize pull-through and provide secure clamping in metal assemblies.

Unslotted drive: Requires hex drive bit; absence of a slot reduces driver cam-out risk and enhances torque control.

Corrosion resistance: 304 stainless steel provides reliable durability in outdoor, humid, and corrosive environments.

Material grade and compatibility: 18/8 stainless steel (304) suited for general stainless fastener applications, including metal enclosures, cabinetry, and equipment housings.

Use cases: Ideal for assembly of light to medium gauge sheet metal components such as HVAC duct fittings, electrical enclosures, appliance housings, and automotive body sheet metal panels.