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Aluminum alloy crescent lock screw, plastic steel lock screw, hinge screw, self tapping screw, flat head

Huzhou screws high-strength screws, blue white zinc, colored zinc, such as guests do not specify the color of the shipment nails random

discount 70% in 2018-10-20 to 2018-10-22
price: USD$ 0.05
freight :USD$18.00,(Express)
freight :USD$7.00,(Postal parcel)
Minimum Order Quantity:179
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Countersunk cross headed self tapping screws

Material: medium carbon steel (high strength heat treatment) standard number: GB846

Surface treatment: blue zinc plated \ white zinc, color zinc

Specification: thread diameter mm*, length mm (including head thickness)


Such as: flat headed self tapping screw M4*12, thread diameter of about 4mm, length of 12mm (length, including the thickness of the head)

This screw is all heat treatment plus hard, very high hardness, mainly used for locking iron sheet, aluminum plate and other high hardness material, can also play plastic materialAbsolutely different from the ordinary self tapping screw on the market