23mm diameter 51mm length long wheel spline lug nuts

Product Description

Chinese Manufacture 23mm diameter 51mm  length long wheel spline lug nuts

Packing & Delivery

Bulk,blister, color box and so on,you can choose what you want.

1)  Car Spline lug nuts salt spray test: more than 72 hours

2)  Car Spline lug nuts plating: 4 layers nickle+1 layer chrome,our thickness of nickle ≥28μm

3)  Car Spline lug nuts warranty: 1 year

4) Car Spline lug nuts testing: 100% from product to packing

5)  Car Spline lug nuts finish:  chrome,zinc,blacking,dacromet,color electrophoretic and mucn more

6)  Car Spline lug nuts grade: 6/8/10

7)  CCar Spline lug nuts chrome, we also can do

8)  Car Spline lug nuts Quality Control:

(1)Production manager arrange the production task. Inspector control the quality.

The workers get the “daily production and quality record” and products drawing from workshop manager.   Then get the products from warehouse keeper.

(2) After getting the products, the worker look over the drawing, and make first product then give this  product to inspector. When inspector confirm the product is qualified, he will give “certificate of first product  inspection” to worker

(3)Then worker make volume production. The worker will inspect and check the products every hour, and do the records timely, finish the production task with good quality. The inspector will also check the products every hour

Also we have fully automatic machine to check the thread of chrome lug nut