Q1: Are you trading company or manufacturer ?

A: We are a direct manufacturer.

Q2: What's your MOQ?

A:100pcs.

Q3: How long is your delivery time?

A:Fast delivery time within 20 days.

Q4: Do you provide samples ? is it free or extra ?

A:Free samples for confirmation &OEM servicewe available.

Q5: What is your terms of payment ?

A:TT - 30% DEPOSIT ,70% AFTER BL COPY

Q1: Are you trading company or manufacturer ?

A: We are a direct manufacturer.

Q2: What's your MOQ?

A:100pcs.

Q3: How long is your delivery time?

A:Fast delivery time within 20 days.

Q4: Do you provide samples ? is it free or extra ?

A:Free samples for confirmation &OEM servicewe available.

Q5: What is your terms of payment ?

A:TT - 30% DEPOSIT ,70% AFTER BL COPY

Spring Washer

A ring split at one point and bent into a helical shape. This causes the washer to exert a spring force between the fastener's head and the substrate, which maintains the washer hard against the substrate and the bolt thread hard against the nut or substrate thread, creating more friction and resistance to rotation. Applicable standards are ASME B18.21.1, DIN 127 B.
Spring washers are a left hand helix and allow the thread to be tightened in a right hand direction only, i.e. a clockwise direction. When a left hand turning motion is applied, the raised edge bites into the underside of the bolt or nut and the part that it is bolted to, thus resisting turning. Therefore, spring washers are ineffective on left hand threads and hardened surfaces. Also, they are not to be used in conjunction with a Flat Washer under the spring washer, as this isolates the spring washer from biting into the component that will resist turning.

The use and effectiveness of spring lock washers has been debated, with some publications advising against their use on the grounds that, when tight, the washer is flat against the substrate and gives no more resistance to rotation than a normal washer at the same torque. However, a spring washer will continue to hold the bolt against the substrate and maintain friction when loosened slightly, whereas a plain washer will not.

The benefit of spring lock washers lies in the trapezoidal shape of the washer. When compressed to loads near the proof strength of the bolt, it will twist and flatten. This reduces the spring rate of the bolted joint which allows it to maintain more force under the same vibration levels. This prevents loosening.

Spring Washer,Spring Lock Washer,Spring Steel Washer,Stainless Steel Spring Washers

Taizhou Risco Stainless Steel Products Co.,Ltd , https://www.riscofastener.com