A: It depends.If we have bulk goods in stock, we can ship goods within 3 days after the QC process. If we don’t have stock, normally it takes 7-15 days for OEM samples and 20-30 days for bulk goods. If it refers to opening the new mold, it takes an extra 7-15 days to make the mold.
Screw Locking Washer
Materials:
- Carbon steel (common for general use, often heat-treated), stainless steel (AISI 304/316 for corrosion resistance), alloy steel (high-strength applications), or phosphor bronze (non-sparking, electrical conductivity).
- Surface treatments: Zinc plating, galvanization, or Dacromet coating for rust prevention and enhanced durability.
Manufacturing Process:
- Stamping/Punching: Shapes washer blanks (split-spring, serrated, or tab designs) from metal sheets.
- Heat Treatment: Hardening and tempering (for carbon/alloy steel) to improve elasticity and fatigue resistance.
- Forming: Creates split-spring or serrated profiles using dies or rolling machines.
- Surface Finishing: Coating or passivation to prevent corrosion and reduce friction.
Key Production Considerations:
- Spring Tension Control: Ensures consistent flexibility for split-spring washers.
- Edge Sharpness: Maintain serrated teeth sharpness for effective grip on surfaces.
- Deburring: Remove sharp edges to prevent damage to mating components.
- Dimensional Tolerance: Critical for split-spring washers to retain clamping force.
Applications:
- Machinery: Prevent bolt loosening in motors, pumps, or gearboxes exposed to vibration.
- Automotive: Secure critical components (e.g., brake systems, engine mounts).
- Electronics: Fasten components in devices prone to thermal cycling.
- Aerospace: High-vibration assemblies requiring fail-safe locking.
- Construction: Stabilize structural bolts in bridges or steel frameworks.
Installation:
- Placement: Position between the nut/bolt head and the mating surface.
- Torque: Tighten to specified torque to activate the locking mechanism (e.g., serrations bite into surfaces, split-spring compresses).
- Reuse: Avoid reusing deformed or worn washers in critical applications.
- Combination Use: Pair with threadlockers or nylon nuts for enhanced security in extreme conditions.
Advantages:
- Prevents loosening caused by vibration, thermal expansion, or dynamic loads.
- Cost-effective solution compared to adhesive-based locking methods.
- Simple installation with no additional tools required.
Note:
- Avoid over-tightening, which may flatten split-spring washers and reduce effectiveness.
- Replace washers if corrosion or wear compromises their locking function.
Frequently Asked Questions
A: Normally, we make a 30% deposit after Pl confirmation and a 70% balance before shipment. lf order amountis too small, we can also change to 100% deposit in order to save bank handling charge.
A: A pre-bulk sample check can solve this problem to the largest extent. We will arrange production according to the pre-bulk sample quality standard after your confirmation of the samples.
A: We are not only a trading company but also a manufacturer. Our factory mainly focuses on mold design and quality inspection. Our bulk production may come from the factories we have worked with for a long time, and they are all ISO9001 certified. Through this cooperation model, we can not only ensure product quality and service, but also satisfy the diversified product needs of customers, and the price is more advantageous.
A: Yes,we are very glad to offer you samples.
However the express courier cost from our company to your required address will be upon your account.
Usually we use DHL, UPS, FEDEX or EMS as the courier.
It will take 3-7 days to arrive many Europe countries and North America.
Which express courier we will use, it’s up to your convenient or the express charge.
A: No,just part of our capable categories have been showed in our site.
If you are looking for relative industrial products, please feel free to contact us.
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