Customize various types of screws, nails. All kinds of metal products.
Our company specializes in producing many kinds of hard products: drywall screw, chipboardscrew, deck screw, wood screw, self-tapping screw, ect.
Size can be customized.
Your enquiry is welcome. Thanks dear.
The company produces and operates various fastener products: hexagonal drill tail wire, Washi head drill tail wire, countersunk drill tail wire, tower bolts, anti-theft bolts, GB30 bolts, anti-theft mother, anchor bolts, U-shaped wire, electrified railway special bolts, nuts, bolt pins and all kinds of power fittings. With all kinds of hot-dip galvanized bolts, nuts, flat washers, spring washers, can be customized a variety of special-shaped parts.


d | P | dc | S | k | |||
max | min | max | min | max | min | ||
ST2.9 | 1.1 | 6.3 | 5.8 | 4 | 3.82 | 2.8 | 2.5 |
ST3.5 | 1.3 | 8.3 | 7.6 | 5.5 | 5.32 | 3.4 | 3 |
ST4.2 | 1.4 | 8.8 | 8.1 | 7 | 6.78 | 4.1 | 3.6 |
ST4.8 | 1.6 | 10.5 | 9.8 | 8 | 7.78 | 4.3 | 3.8 |
ST5.5 | 1.8 | 11 | 10 | 8 | 7.78 | 5.4 | 4.8 |
ST6.3 | 1.8 | 13.5 | 12.2 | 10 | 9.78 | 5.9 | 5.3 |



