View Similar Products

Round Head Machine Screw: Steel, Zinc Plated, Combo, 1/4"-20 Thread Size, 4 in Shank Lg, 100 PK

Item # 423W580

$19.31 Pack of 100

Product Specs

Finish: Zinc Plated
Material: Steel
Drive: Combination
Thread Size: 1/4"-20
Shank Length: 4 in
Pack Qty: 100
System of Measurement: Imperial
Head Style: Round
Specifications Met: ANSI B18.6.3
Drive Size: No. 3
Head Diameter: 0.472 in
Head Height: 0.175 in
Material Grade: Grade 4
Pack Unit: PK
RoHS Compliant: Yes
Rockwell Hardness: B69
Screw Size: 1/4 in
Thread: Fully Threaded
Thread Direction: Right Hand
Thread Type: UNC

Compliance and Restrictions

Country Of Origin

  • Varies

About This Product

These Round Head Machine Screws are constructed of steel, which is a magnetic material that provides strength for everyday fastening applications. They have a zinc plated finish, which provides mild corrosion resistance and a shiny finish. They also have a combination drive, which is able to accommodate a Phillips or flat screwdriver. They have a 1/4"-20 thread size and a 4 in shank length. They have a round head, which is frequently chosen for its finished look. They meet ANSI B18.6.3 specifications. 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.

Smooth, dome-shaped round head screws give a finished look where screw heads are in plain view.