tapping screws

Product name: Self Tapping Screw Standard: ASME B18.6.4 & SAE J81 DIN6901, DIN6928, DIN7971, DIN7972, DIN7973,DIN7976 ,DIN7981, DIN7982, DIN7983, DIN968 Size:#4(2.8)-1/2" Length: 10-180mm (3/8”- 7”) Head type:Hex , Flat, Pan, Truss, Round, Hex washer, Oval, Pan framing, Bugle, Fillister,etc Drive type:Phil, slotted, Phil & slotted combination, Hex socket Screw type: AB, B, BP, BF, BT, C, D, F, G, T, U Material: Carbon steel C1018, C1022, CH22A (+ heat treatment), SS304, SS316, SS410 Finish: Plain, Zinc Plated(Clear/Blue/Yellow/Black), Black oxide, Nickel, Chrome, H.D.G

Hex washer head self-drilling screws are mechanical basic parts and are in great demand. Usually self-drilling screws are used to ensure safety or generally do not consider the adverse effects of temperature or other dangerous conditions. Commonly used materials are carbon steel and stainless steel. However, in certain occasions, fastener materials need to meet severe corrosion or high strength conditions, and many stainless steel and ultra high strength stainless steels have emerged.

The pan head self-tapping screw is composed of two parts: a head type and a thread type. Pan head is a type of head that is very common in our daily life, referred to as P head. The head groove type can be designed as a cross groove, a plum blossom groove, an addition and subtraction groove, a hexagonal groove, and the like. The common materials for pan head tapping screws are carbon steel and stainless steel. No matter which material, we can customize it according to your needs.

The countersunk head tapping screw material is generally made of carbon steel, and the surface hardness of the material after heat treatment is not less than 45HRC. Compared with the threads of ordinary screws, the pitch is large and the small diameter is slightly smaller at the same large diameter. It has been standardized and is usually used on doors and windows and iron sheets.

Product name: truss head self tapping screw Standard:ASME B18.6, DIN968 Size:#4(2.8)-1/2" Length:10-180mm (3/8”- 7”) Head type: truss Drive type:Phil, slotted, Phil & slotted combination, pozi Screw type:AB, B, BP, BF, BT, C, D, F, G, T, U Material:Carbon steel C1018, C1022, CH22A (+ heat treatment), SS304, SS316, SS410 Thread:M, UNC, UNF Finish:Plain, Zinc Plated(Clear/Blue/Yellow/Black), Black oxide, Nickel, Chrome, H.D.G

Product name: Pan head self tapping screw Standard:ASME DIN JIS Size:#4(2.8)-1/2" Length:10-180mm (3/8”- 7”) Head type: pan, pan framing, Drive type:Phil, slotted, Phil & slotted combination, hex socket Screw type:AB, B, BP, BF, BT, C, D, F, G, T, U Material:Carbon steel C1018, C1022, CH22A (+ heat treatment), SS304, SS316, SS410 Thread:M, UNC, UNF Finish:Plain, Zinc Plated(Clear/Blue/Yellow/Black), Black oxide, Nickel, Chrome, H.D.G

Standard:ASME B18.6, DIN7972, DIN7973 , DIN7982, DIN7983,ISO7050 Size:#4(2.8)-1/2" Length:10-180mm (3/8”- 7”) Head type: flat Drive type:Phil, slotted, Phil & slotted combination, pozi Screw type:AB, B, BP, BF, BT, C, D, F, G, T, U Material:Carbon steel C1018, C1022, CH22A (+ heat treatment), SS304, SS316, SS410 Thread:M, UNC, UNF Finish:Plain, Zinc Plated(Clear/Blue/Yellow/Black), Black oxide, Nickel, Chrome, H.D.G

Crosshead self-tapping screws: It refers to the head of the screw for the pan head, that is, the round head, or the stainless steel self-tapping screw called the semicircular head. It is used for the fastening effect between the materials of the product, and also makes the connection between different materials and materials. Or used to lock the stable material.

The plating of the self-drilling screw of the cross recessed countersunk head generally refers to the plating of the iron Phillips screw. The stainless steel Phillips screw is rarely plated. The color of the Phillips screw plating is environmentally friendly and non-environmental. The environmental protection plating color has environmental protection white. Zinc, environmentally friendly blue zinc, environmentally friendly color zinc, environmentally friendly black zinc, environmentally friendly white nickel, etc., non-environmental white nickel, white zinc, color zinc, black zinc, black nickel, black, blue zinc.