M4 x 20mm Metric Hex Socket Countersunk Flat Head Screw Bolts Black 50PCS

About this item

• Head Style: Countersunk; Material: 10.9 Alloy Steel; Package Content: 50(+/-2%) x Countersunk Bolts
• Product Name: Countersunk Bolt; Thread Size: (d x L1) M4 x 17mm/0.16″ x 0.67″(D*L); Weight: 90g
• Drive Type: Hex Socket; Main Color: Black
• Thread Pitch: 0.7mm; Total Length: ( L ) 20mm/ 0.8″
• Head Size: (D x t) 8 x 3mm/0.3″ x 0.12″(D*T); Width Across Flat (S): 2.5mm/ 0.1″

10.9 Alloy Steel Material, 0.7mm Thread Pitch, Hex Key Hex Socket Countersunk Flat Head Key Bolts Screws M4 x 20mm.
Countersunk bolts is anti-corrosion,rustless,non-pollution and high-hardness. It is widely used in industrial.