The international standard of the cross - slotted pin cushion assembly screws is the cross - slotted cap screw, the spring washer and the gasket assembly. National standards are divided into GB9074.8 and GB9074.4. The combination screw GB9074.8 is the combination screw of small plate head, and the combination screw GB9074.4 is the combination screw of the large cap. The national label is GB/t9074.8-1988. This is the year of 1988, which is the standard issued by the state in 1988. The specification of the screw in the small plate of the cross groove small plate, the minimum is to be M2.5, the shortest is 5mm. The maximum is M10, the longest is 90mm.
Cross grooved disc head spring flat cushion combination screw gb designation is cross grooved disc head screw, spring washer and flat washer combination.
National standards are divided into GB9074.8 and GB9074.4.
Combination screw GB9074.8 refers to small disc head spring flat cushion combination screw, combination screw GB9074.4 refers to large disc head combination screw.
The minimum size of the three combination screws of the cross groove small disc head is M2.5, the minimum is 5mm, the maximum is M10 and the maximum is 90mm.
This product is made of carbon steel material, and after the production, the head is coated with glue.
Can be customized with drawings and samples.
