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Chuanghe Fastener Co., Ltd.

  • Address:Lizhou industrial Park,Shangshanqi, Zhushan District, Dongcheng Town, Dongguan City, China.
  • TEL:+0086-769-27382539
  • Fax:+0086-769-27382719
  • Mob:+0086-18607694667
  • Contact:David Dai
  • Relevant search:bolt, screw, nut, rivet, washer, CNC turned parts Plastic Bakelite Handles

Company News
Company News

A clerk on the interpretation of different standards fastener components

Views: 66Date: 2013-09-12Typeface: Big Small
Standard fasteners standard parts come from , in 1986 , we have developed a state of the standard new standards , commonly known in the business as a new standard, the most used are mainly GB5780, GB5781, GB5782, GB5783, GB5784. GB5780 hexagonal head coarse thread screw rod and a half , its accuracy rating of C-class product that can be used instead of GB5782 (GB5782 thick shaft hexagonal head screw the whole tooth , its accuracy until the level of A-and B -class .) GB5781 hexagonal head full screws , accuracy class C-class product. GB5783 used instead (GB5783 hexagonal head screw the whole tooth , its accuracy class A and B ) . GB5784 is tooth rod half hexagonal screws. In the usual domestic business, we are the most commonly encountered standard GB ( GB ) and DIN ( German standard ) .

In the non- health products, mainly be exposed to the following criteria : GB30; GB5783; GB5782; GB52; GB6170; GB818; GB819; GB845; GB846; GB70; DIN912; DIN933; DIN931 and so on. Currently GB30 ( old GB ) in the standard book has been GB5783 ( New GB ) replaced . GB52 ( old GB ) in the standard book has been GB6170 ( New GB ) replaced .

For hex nut , commonly used standards : GB52, GB6170, GB6172 and DIN934, for the main difference between them : GB6170 thickness than the GB52, GB6172 and DIN934 come thick , commonly known as the thick nut. The other is on the edge of the distinction , M8 nut series DIN934, GB6170, GB6172 are on the opposite side of the right side 13MM 14MM than GB52 smaller 1MM, M10 nut , DIN934 with GB52 opposite side of 17MM, than GB6170 and GB6172 's right side to a large 1MM, M12 nut , DIN934, GB52 19MM than on the opposite side to the right side of GB6170 and GB6172 18MM larger 1MM. For the M14 nut , DIN934, GB52 22MM than on the opposite side to the right side of GB6170 and GB6172 21MM larger 1MM. The other is the M22 nut , DIN934, GB52 the right side for the 32MM, than GB6170, GB6172 opposite side 34MM smaller 2MM. (GB6170 and GB6172 addition to its thickness is not the same , the same as the width of the edge ) remaining specifications without considering the thickness of the case can be common.

New standard with the old subject of difference is : M8, M10, M12, M14, M22 series of products in the right side width differ. In addition to M22 series of new products , the new standard products M8, M10, M12, M14 on the side of the head on the side of the subject than the old smaller 1MM. Respectively 13,16,18,21 MM, and M22 series of new products , the new standard on the side of the subject rather than the old larger 2MM, should pay special attention . For the self-tapping screw head thickness , the new standard and the slight difference between the old standard , the requirements are not very stringent conditions can be common.