Specifications:

1. screw diameter : the diameter of the screw is only partially thread the thickness , in production and in national standards , weight is lower tolerance , 如 11.7MM 11.8MM      11.75MM 11.5MM 都属于 12MM 的螺丝 ,9.7MM 9.75MM 9.68MM 等等都属于 10MM 螺丝 . 以此类推 .

2. 螺丝的长度 : 一般平头 , 沉头螺丝是按照总螺丝长度来计算 , 其他六角头 , Round head , Hexagon socket length was not even the head , which is calculated in accordance with the length of the screw .

3. 螺丝的规格 : 店铺中很多都是多少乘以多少 , 如 M10*25 也是 10MM 粗 ,25MM 长的螺丝 .

4. gasket spring pad size : how much weight screw for use in

Shipping instructions:

1. before buyers take product, please contact the owner if it is available, so as not to cause inconvenience of stock out of stock. Normally in stock same day shipping, if out of stock. We will promptly notify the seller.

2. because the screws are heavy, a variety different freight, freight can vary, Please do not take the immediate payment of goods, first contact the owner to modify shipping charges and payment . Thank you for your cooperation.

Fastener products because of relatively heavy, we will on the premise of buyer's receipt of the goods, choosing the right affordable courier, hope the buyers understand. Express the company's speed and service are beyond our control, we cannot do prompt shipping, time tracking. Each baby is labeled with the courier fee, can be used as a reference, the actual operation can be set according to the specific circumstances.

About invoicing

Need to be invoiced, please contact owner (less than 100 Yuan, in principle do not invoice, invoicing needs plus 10 Yuan, driving ordinary invoice)

On the after sale appraisal

After receipt of the goods. If you are satisfied with goods. Received support from the trouble. Very grateful! If you have objections, please promptly contact the owner, we will properly handle the aftermarket not directly given the difference in assessment.