High Collar Split Lock Washer

Compared with products like nylon locking nuts, the price of Xiaoguo® High Collar Split Lock Washer is very cheap. Even when purchased in large quantities, it will not increase the cost, and it can also improve efficiency

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Product Description

The surface treatment of High Collar Split Lock Washer focuses on enhancing their rust and corrosion resistance while maintaining the anti-loosening function. Sometimes, it also aims to improve the appearance and eliminate the risk of hydrogen embrittlement. The performance, cost, and applicable scenarios vary significantly depending on the different treatment methods.

（1）Zinc Plating

Color: Various colors including silver-white, blue-white, yellow, and black.

Anti-rust ability: Medium

Feature: The most economical and widely applicable surface treatment

Applicable scenarios: General industries, indoor equipment, household appliances and other occasions without particularly strict requirements.

（2）Dacromet/Zn-Al Coating

Color:Matte silver-gray, with a uniform surface

Anti-rust capability:Outstanding

Feature:No hydrogen embrittlement risk. It is the preferred choice for high-strength High Collar Split Lock Washer above 10.9 grade and is resistant to high temperatures.

Applicable scenarios:High-strength connections, outdoor facilities, car chassis, wind power, offshore engineering, etc. for applications with high requirements for rust prevention and strength.

High Collar Split Lock Washer

（3）Phosphating

Color:Dark gray or black, with a smooth and delicate texture

Anti-rust capability:Poor to average

Feature:No hydrogen embrittlement risk, capable of storing oil, improving lubrication and wear resistance, commonly used as a base layer for painting

Applicable scenarios:The High Collar Split Lock Washer is used for components that require coating or lubrication, and also for the mating surfaces of high-strength bolts for anti-loosening purposes.

（4）Black Oxide

Color:Black, with texture

Anti-rust capability:Poor/Disappointing

Feature:Cost is extremely low.

Applicable scenarios:Precision instruments, optical equipment, tools, etc. have requirements for dimensional accuracy and appearance, but in environments with dry conditions.

（5）Nickel Plating

Color:Silver and shiny, suitable for decoration

Anti-rust capability:Medium to High

Feature:The appearance is shiny and has excellent corrosion resistance.

Applicable scenarios:Electronic devices, precision instruments, and in situations where there are requirements for the appearance of parts.

（6）Hot-Dip Galvanizing

Color:Dark gray with a hint of black, and the surface is rather rough.

Anti-rust capability:Excellent

Feature:The zinc coating is extremely thick and provides long-lasting physical protection; it is wear-resistant and suitable for large outdoor structures.

Applicable scenarios:High Collar Split Lock Washer are used in scenarios such as large-scale outdoor steel structures, bridges, power towers, and pipe flanges where the requirement for protection duration is extremely long.

（7）Zinc-Nickel

Color:Silver-white

Anti-rust capability:Outstanding

Feature:No risk of hydrogen embrittlement or the risk is extremely low; excellent corrosion resistance, high hardness, even superior to Dacromet.

Applicable scenarios:Highly saline environments (such as in marine engineering), high-value-added products, and the automotive industry, etc., which are demanding scenarios.

High Collar Split Lock Washer

Mon	φ18	φ20	φ22	φ2 4	φ27	φ30	φ33	φ36	φ39	φ42	φ45
d min	18.2	20.2	22.5	24.5	27.5	30.5	33.5	36.5	39.5	42.5	45.5
d max	19.04	21.04	23.34	25.5	28.5	31.5	34.7	37.7	40.7	43.7	46.7
b min	4.3	4.8	5.3	5.8	6.5	7.2	8.2	8.7	9.7	10.2	10.7
b max	4.7	5.2	5.7	6.2	7.1	7.8	8.8	9.3	10.3	10.8	11.3
h min	4.3	4.8	5.3	5.8	6.5	7.2	8.2	8.7	9.7	10.2	10.7
h max	4.7	5.2	5.7	6.2	7.1	7.8	8.8	9.3	10.3	10.8	11.3
H min	9	10	11	12	13.6	15	17	18	20	21	22
H max	11.25	12.5	13.75	15	17	18.75	21.25	22.5	25	26.25	27.5