1)high strength screw
2)series steps screw
3)superior quality screw
4)various specifications of screws

high strength low carbon steel chicago screw for binding large catalog details:

Packaging & Delivery

Dongguan King-tower Hardware Co.,Ltd is one of the largest enterprises to produce flowers tooth combination of screws in Mainland China. China screw manufacturer choose King-Tower.Our company produces all kinds of combination screw, micro screw, security screw, Chiacgo screw, special custom screw,laptop screw,plastic head screws,thumb screw, lathe nut,and machine screw, to meet various standard requests from different countries. All the equipment is introduced from the United States, Japan and Taiwan. Good equipment, consummate craft and strict management enable the quality of the products and service standard to reach the level of international market.

Production equipment :

With various types of multi-station forging forming machine, two-mode four-stroke machine, hollow rivet machine, thread rolling machine, CNC lathe, program-controlled precision lathe, precision drilling, precision grinding, milling, general automatic lathe, rachis, stainless steel high-temperature heat treatment furnaces and other equipment, we can processing Metric, BS, ANSI fasteners and non-standard shaped products which their diameters ranging from 1mm to 10mm, and length 2mm to 100mm.Stainless steel raw materials use 302HQ, 304HC, 304M, 316C, 316L, XM7 and dozens of imported stainless steel to ensure the products can meet the A2, 70; A2-80 and A4-80 performance requirements and high anti-rust ability. Through anti-rust treatment, stainless steel products can last more than 72 hours in the salt spray test, even up to 1000 hours. Dozens of imports of carbon steel raw materials are made of SWRCH22A, SWRCH18A, SWRCH15A, SWRCH10A, SWRCH8A, SWRCH6A, SWRCH35K, SWRCH45K, ML08AL, ML40CR, XGM6, 10B21, 10B33, SCM435, 30GrMnTi, ML20MnTiB, 50BV30, 20CrMo, GCr15, CH1T, Q195LY etc. so that products can meet the Grade 4.8, Grade 8.8, Grade 10.9, Grade 12.9 product requirements and the requirements of high-strength productions.

Testing instruments:

To ensure the quality and performance of the manufacturing, as a China screw manufacturer, our company is equipped with all kinds of professional testing equipment: universal testing machine, hardness tester, torque, metallographic analyzer, projectors, imager, and salt spray test machine and so on. Professional inspection: digital micrometer, inside and outside diameter micrometer, a micrometer head, triangular thread odd micrometer, a few significant vernier caliper, thread ring gauges and thread plug gauge and other professional testing equipment.

Implementation standards:

We can produce all kinds of fasteners in accordance with standards of GB DIN, JIS, ANSI and manufacture non-standard or special-shaped parts according to customer requirements. Our company is with excellent quality, innovative technology, reasonable prices and perfect service! Customers at home and abroad are warmly welcome to cooperate with us!

Main Products: the Most Competitive Products, sem screw/ combination screw, security screw, Chicago screw, special custom screw, customized screw, plastic head screw, lathe nut, and professional screw automotive turning parts, screw drivers, toy axles, machine screws, machining, aluminum screws, stainless steel screws and so on.

We are looking for our cooperation!