JX-21QJG312-D15.5-21.6-ST, #45 steel double ball head pin for automobile, surface treatment natural color zinc-nickel alloy 720 hours

Technical requirements: 

1. Unfilled tolerances are in accordance with the standard QC/T267 (1999) limit deviation of unfilled tolerance dimensions for automotive cutting parts: 2. No flash, no burrs, no scratches, no obvious turning tool marks;

3. The surface is galvanized and nickel-plated, trivalent chromium passivated, and sealed. After passing the GB/T10125 NASS neutral salt spray for 96 hours, press

GB/T6461-2006 evaluation reached 10/7sc;

4. The size of this drawing is after zinc-nickel plating;

5. The chamfer without the note is R0.3.

6. Dimensions marked with are key functions and matching dimensions, Compared to galvanization, zinc-nickel alloy exhibits significantly improved corrosion resistance. Under the condition of an equal coating thickness of 8μm, after passivation and sealing treatment, it can achieve 240 hours of surface without white rust and 1000 hours without red rust. Additionally, it meets the requirements for high-temperature resistance. However, zinc-nickel alloy still has a slight susceptibility to hydrogen embrittlement. For automotive fasteners with a tensile strength greater than 1000 MPa, necessary verification is required before use to reduce quality risks.

Material: Steel 1045 Machined Parts

Cox Manufacturing has a reputation for machining quality parts from 1045 Steel. We can machine intricate parts on our CNC Swiss machines and CNC turning centers.

Steel alloy 1045 is a versatile medium carbon alloy, ideal for parts that require strength and impact resistance. Due to its higher carbon content, it has higher tensile strength. 1045 has excellent ductility and toughness.1045 has a machining cost factor of 3.0 when compared to steel 12L14. It is not ideal for welding or forming due to its higher carbon content. 1045 responds to heat treatment extremely well, but it is not ideal for case hardening.

Packing: Inner is Poly foam, out is carton. Then pallet. Carton size: 29*19*19.5CM and 23.5*17.5*8, CM and pallet size is: 215*100*90CM, or as your requirement.

Packaging & Delivery and Packaging Details

1. Shrink film+wooden box

2. Cardboard box+pallet

3. Color box

4. As per the customer's request