Flat Head Self Tapping Screw

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Basic Info.
  • Type: Others 
  • Material: Steel 
  • Brand Name: Zhonglei 
  • Place of Origin: Hebei  
Supply Capacity
  • Packing:Standard Packing.
  • Delivery Date: Within 20 days.

Self tapping screws, also called tapping screws or sheet metal screws, are used in situations where the material is too thin to tap--like sheet metal--and you don't have rear access to install a nut, but you may need to unfasten the materials later.

They have spaced (coarse) threads, and are also used in wood.

For button, hex, hex washer, pan, round and truss heads, measure length from under the head. For flat and oval heads, length includes head height.

Size: st2.9/st3.5/st3.9/st4.2/st4.8.st5.5/st6.3/st8

Thread Pitch: 1.1/1.3/1.3/1.4/1.6/1.8/1.8/2.1

Head Thickness: as per size

Across Flats: as per size

Material: steel

Grades: 4.8/6.8/8.8/10.9/12.9

Finish: black oxide/zinc plated (galvanized), dacromet, etc

Technical Info: DIN 7504K

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Mr. Wang zhenyu
Tel: 86-310-6808555
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Yongnian Zhonglei Fastener Co., Ltd.
Youyi Street,Linmingguan Town, Handan, Hebei, China (Mainland)
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