Generic M4-0.7x20mm Button Head Screws,M4x20mm Socket Cap Bolts,10.9 Grade Alloy Steel, Allen Socket Hex Drive, Black Oxide Finish,Machine Thread, Fully Threaded,UNC 75Pcs, M4x20mm(75Pcs)-Fast Shipping

Description

Screw ParametersProduct name: M4x20mm Socket Head Cap Screw; Hardness grade: 10.9; Color: Black; Size: M4x20mm; Screw length:22.2mm; Thread pitch: 0.7mm, thread length:20mm; Thread type: fu4l thread;Coarse thread.

Features of ScrewsUniversal metric socket head mechanical screws, screw smooth surface, excellent material, sturdy and durable. Deep thread, smooth arc, wear-resistant and rust proof, evenly distributed force, not easy to slip, high toughness, and good machinability.

Screw MaterialThe screws are made of high-quality alloy steel, with a black oxide surface providing good protection, ensuring service life, preventing corrosion and loss of luster. They have excellent corrosion resistance, firmness, wear resistance, and low temperature resistance

Screw Packaging75Pcs M4x20mm alloy bolts are packed in a transparent box for easy storage and portability. Suitable for professionals, hobbyists, landlords, and repairmen to use at home, in the office, or at work.

Screw ApplicationSocket head cap screw widely used in places that require fastening, such as household and office appliances and furniture, communication equipment, automotive and ship assembly, petrochemical industry, electronic products, and other mechanical industries; Small repairs to shops, garages, and gardens, as well as assembly and maintenance of DIY projects.