Factory Sale Hex Head with Flange Self Drilling Screw Self Tapping Screw

• Material: Carbon Steel
• Type: Hexagon Head With Flange
• Groove: Word
• Connection: Common Bolt
• Head Style: Hexagonal
• Standard: DIN, GB, ANSI, BSW, JIS, GOST
• Model NO.: HFSDS
• Grade: 4.8
• Name: Hex Flange Head Self Drilling Screw
• Surface Treatment: White Zinc, Yellow Zinc, White Blue Zinc Plated
• Transport Package: Box or Bag with Pallet
• Specification: M3-M8
• Trademark: Younsion
• Origin: Handan, Hebei, China
• HS Code: 7318190000
• Production Capacity: 70200 Tons /Years

Product Description

Self-drilling screw is a screw that can tap its own hole as it is driven into the material. For hard substrates such as metal or hard plastics, the self-drilling ability is often created by cutting a gap in the continuity of the thread on the screw, generating a flute and cutting edge similar to those on a tap. Thus, whereas a regular machine screw cannot tap its own hole in a metal substrate, a self-drilling one can (within reasonable limits of substrate hardness and depth)

Specification

item	Hex head self drilling screws with EPDM washer
Finish	White Zinc, Yellow zinc, White Blue Zinc plated
Material	Carbon Steel
Measurement system	INCH,METRIC
Head Style	HEX
Place of Origin	China
Standard	DIN7504K
Length	19mm-150mm
Diameter	4.8mm, 5.5mm, 6.3mm(#10, #12, #14)
Material	C1022A, heat treatment
Point	Drill Point
Usage	Heavy industry, Decoration, General industry