Hex head cap screws and flat head slotted cap screws meet specific dimensional specifications and are often used in precise applications where tight tolerances are required. The flat slotted head is preferred over the hex head when head clearance is a concern. Hex Head Flat washer face bearing surface under the hex head that meet specific specifications as described by ASME B18.2.1 Features 300 Piece Specifications Size: M20 x 55 mm Thread Size: M20 x 55 mm Material: Steel Drive Style: External Hex Specification Met: DIN 933 Finish: Zinc Plated Head Style: Hex Head Thread Coverage: Fully Threaded Grade: Class 8.8 System of Measurement: Metric Thread Style: Right Hand Weight: 122.4 lbs - SKU: APFN35580

Hex head cap screws and flat head slotted cap screws meet specific dimensional specifications and are often used in precise applications where tight tolerances are required. The flat slotted head is preferred over the hex head when head clearance is a concern. Hex Head Flat washer face bearing surface under the hex head that meet specific specifications as described by ASME B18.2.1 Features 300 Piece Specifications Size: M20 x 55 mm Thread Size: M20 x 55 mm Material: Steel Drive St