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9/16" Stainless Steel Shakeproof External Serrated Lock Washer ASME B18.21.1 M3-M24
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9/16" Stainless Steel Shakeproof External Serrated Lock Washer ASME B18.21.1 M3-M24

Place of Origin Jiangsu, China
Brand Name Ouji Fasteners
Certification ISO, GB
Model Number Din
Product Details
Name:
9/16" Stainless Steel Shakeproof External Serrated Lock Washer ASME B18.21.1 M3-M24
Keyword:
External Tooth Lock Washer
Material:
Phosphor Bronze,Brass,Carbon Steel,Stainless Steel
Finished:
Chrome Plated,Zinc Plated,HDG Etc
Appearance:
Bright Neat Body, Without Any Burrs
Size:
M1.7-M31
Standard:
DIN,JIS,ANSI,GB,BSW,etc
Color:
White,black,silver,gold Or As Your Requirement
Grade:
A2-70 A2-80 A4-70 A4-80;4.8/ 6.8/ 8.8/ 10.9/ 12.9;
Highlight: 

external serrated lock washer

,

external shakeproof washer

,

external serrated washer

Payment & Shipping Terms
Minimum Order Quantity
1 set
Price
Negotiation
Packaging Details
Wooden case packing
Delivery Time
3-5 working days
Payment Terms
L/C, T/T
Supply Ability
3 million pieces per week
Product Description
 

9/16" Stainless Steel Shakeproof External Serrated Lock Washer ASME B18.21.1 M3-M24 

 

Description

 

 

Stainless Steel external tooth lock washers are used under bolt heads or nuts to increase the hold of the fastener. They can be manufactured of 18-8 or 400 series stainless steel. External tooth lock washers have teeth on the outer dimension of the washer creating a ratchet action by biting into the nut or screw head and the surface it contacts. Dimensional specifications are governed by ASME B18.21.1. Stainless steel fasteners are commonly used in applications that require general atmospheric corrosion resistance, such as chemical and food processing equipment.

 

Lock washers create tension by “locking” the bolt or screw into the workpiece’s threaded hole. Unlike flat washers, they have serrations on the washer body to prevent rotation and provide a more secure connection than flat washers. These washers are frequently used in high-vibration environments to prevent the loosening of the fastener assembly.

 

 Specification 

 

 

Standard
ASME, IFI, DIN, ISO and etc.
Size
Standard & non-standard, spport customized
Material
Carbon Steel, Stainless Steel and etc.
Grade
SAE J429 Gr.2, 5,8; ASTM A307Gr.A, Class 4.8, 5.8, 6.8, 8.8, 10.9, 12.9 and etc.
Thread
UNC,UNF
Finish
Plain, Zinc Plated(Clear/Blue/Yellow/Black), Black, H.D.G and etc.
Packing
Bulk in cartons on wood pallet or according to customer special demand.
Application
Structural Steel; Metal Buliding; Oil&Gas; Tower&Pole; Wind Energy; Mechanical Machine; Automobile:
Test Equipments
Desktop direct- reading spectrometer, cutting machine, automatic pre- milling machine, polishing machin,
hard-testing gauge(Vickers), metallography microscope, electrolytic thickness gauge, tensile testing machine,
salt spray device, magnetic detection machine(magnetic particle flaw detector), Caliper, Go&No-go gauge and etc.

 

Size a (min) b (max) c (max)
#2 * * *
#3 0.102 0.235 0.016
#4 0.115 0.260 0.018
#5 0.129 0.285 0.020
#6 0.141 0.320 0.022
#8 0.168 0.381 0.023
#10 0.195 0.410 0.024
#12 0.221 0.475 0.027
1/4 0.256 0.510 0.028
5/16 0.320 0.610 0.034
3/8 0.384 0.694 0.040
7/16 0.448 0.760 0.040
1/2 0.513 0.900 0.045
5/8 0.641 1.070 0.050
3/4 0.768 1.260 0.055
7/8 0.897 1.410 0.060
1" 1.025 1.620 0.067

 

Note

 

Use external tooth lock washers when you need maximum holding power in a washer. Team them up with fasteners having heads large enough to make contact with the washer teeth. Examples include: round head, pan head and binding head. Zinc plating, retards the corrosion rate in a normal atmosphere.

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