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Flat Head Machine Screw: 18-8 Stainless Steel, Phillips, 4-40 Thread Size, 1 in Shank Lg, 100 PK

Item # 133K588

$5.41 Pack of 100

Product Specs

Material: 18-8 Stainless Steel
Drive: Phillips
Thread Size: 4-40
Shank Length: 1 in
Pack Qty: 100
System of Measurement: Imperial
Head Style: Flat
Specifications Met: ANSI B18.6.3; ASME B18.6.3
Drive Size: No. 1
Head Angle: 82.0 °
Head Diameter: 0.212 in
Head Height: 0.067 in
Pack Unit: PK
RoHS Compliant: Yes
Screw Size: No. 4
Thread: Fully Threaded
Thread Direction: Right Hand
Thread Type: UNC

Compliance and Restrictions

Country Of Origin

  • Varies

About This Product

These Flat Head Machine Screws are constructed of 18-8 stainless steel, which provides corrosion resistance, includes grades 302 and 304 stainless steel, is the most common choice for stainless steel, and may be mildly magnetic. They have a Phillips drive, which has a cross head design to prevent slippage. They also have a 4-40 thread size and a 1 in shank length. They have a flat head, which is less visible than other head styles when installed because it does not protrude from the material surface. They meet the following specifications: ANSI B18.6.3 and ASME B18.6.3. They have a No. 1 drive size. Pack of 100.

About Machine Screws

The standard metal-to-metal fastener, machine screws install with a driver into a threaded hole or are inserted into a through-hole and fastened with a nut.

Countersink these flat head screws to sit flush with surfaces.