Phone screws
time: browse:
Screw standard specification
On Saturday, for each version of the national standard, one is GB70-76, the 76 version, and the other is the GB70-8585 version. My company now implements the DIN912 standard, so the difference should be noted in actual business operations: GB70-85DIN912 and DIN912 It is completely heavy, so for the new standard, there is no integration, mainly the difference between GB70-76 and DIN912: M8 series of hexagonal products, GB70-76 has a round head diameter of 12.5MM, which is better than DIN912 The 13.27MM of the M10 series is smaller, the diameter of the round head of GB70-76 is 15MM, which is smaller than the 16.27 of DIN912, the diameter of the inner hexagon of the M12 series, the round head of GB70-76 is 18MM, which is better than DIN912 The opposite side 18.27 is smaller, not like M16, M20 series hexagon socket GB70-76, the round head diameter is 0.33MM smaller than DIN912, respectively 24MM, 30MM. DIN912 is 24.33MM and 30.33MM respectively. The inner side of the old supplementary standard and the German standard inner hexagon are different due to different standards. The opposite side of GB70-76 is smaller, and attention should be paid in business operations.
In addition, there are some differences in carriage screws that may be used in ordinary times. Here is also an explanation. In the national standard, there are two standards for carriage screws, namely GB12 (small half round head square neck screws) and GB14 (large half round head square neck screws). Neck screws), and the German standard DIN603 is commonly used in the market. Now make a distinction between these three: For round head and neck, when the same specification is compared, it is: GB12. Usually when the carriage screw is used, the head and neck are often required to be large and thick, so the DIN603 carriage screw standard fully meets the requirements.
Name:
1. Machine screws 2. Self-tapping screws 3. Self-drilling screws 4. Wallboard nails 5. Fiberboard nails 6. Wood screws 7. Hexagonal wood screws 8. Non-stripping screws 9. Combination screws 10. Micro screws 11. Furniture screws 12 .Electronic Screw
Head type:
1.hexagon head 2.hexagon head with flange 3.square head 4.T head (hammer head) 5.mushroom head(truss head) 6.£¨cheese head£© 7.round head 8.pan head 9.countersunk head flat head 10. raised countersunk head (oval
Groove type:
1. Philip 2. Ten/one character 3. One character 4. Inner triangle 5. Inner corner square 6. Cross 7. Rice character 8. Flower shape 9. Plum blossom 10. Flower shape 11. Special shape 12. Inner hexagon
Previous:Opening Ceremony of Dongguan Liwen Hardware Products Co., Ltd.
　　Next:aaaaa