Bu Lông Lục Giác Chìm Màu Đen 12.9 Grade M4X40

Giới thiệu Bu Lông Lục Giác Chìm Màu Đen 12.9 Grade M4X40

High Tensile Cap Cylinder Hexagon Socket Bolt Bolts Black Socket Screws 12.9 Grade M4*40
This screws are made of fine quality material, high durability and practical. It is easy to use, save your time. 

Features:
Corrosion resistance and high temperature resistance.
Standard hexagonal slot, not easy to slide during the installation process. 
Easier to install and operate, save your time.
12.9 grade carbon steel high strength series, pratical and perfect gloss.
The screw tooth is incisive, and it is not easy to slip during rotation.
Screw tail smooth, quality workmanship, high durability.

Specifications:
Item type: Screw
Material: 12.9 grade carbon steel
Quantity: 5PCS
Selection type: M4*8, M4*12, M4*16, M4*20, M4*25, M4*30, M4*35, M4*40(optional) 
Package weight: M4*8: 7.5g/0.26ounces
                M4*12: 8g/0.28ounces
                M4*16: 10g/0.35ounces
                M4*20: 11.5g/0.4ounces
                M4*25: 13.5g/0.47ounces  
                M4*30: 16g/0.56ounces 
                M4*35: 18.5g/0.65ounces
                M4*40: 19.5g/0.68ounces          
Package size: 120*80*20mm/4.72*3.14*0.78inches

Package List:
5PCS*Screw


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