The High Alloy helical spring split lock washers are manufactured from 4037 alloy steel. These washers are intended for use with Grade 5 and Grade 8 bolt and nut assembly applications.

Finish
PLN = Plain
MZ1= Mechanical Zinc & Clear Dichromate
MZ2= Mechanical Zinc & Yellow Dichromate

Ordering Example: 1/4 HA MZ2 is a 1/4 High Alloy Steel with a Mechanical Zinc & Yellow Dichromate finish.

lw14
Nominal
Washer
Size
Inside Diameter
A
Min.
Inside Diameter
A
Max.
Outside Diameter
B
Width
C
Thickness
D
WCL
Product Number
1/4 0.252 0.26 0.487 0.109 0.062 1/4 Reg Hi Alloy
5/16 0.314 0.322 0.583 0.125 0.078 5/16 Reg Hi Alloy
3/8 0.377 0.385 0.68 0.141 0.094 3/8 Reg Hi Alloy
7/16 0.44 0.45 0.776 0.156 0.109 7/16 Reg Hi Alloy
1/2 0.502 0.512 0.869 0.171 0.125 1/2 Reg Hi Alloy
9/16 0.564 0.574 0.965 0.188 0.141 9/16 Reg Hi Alloy
5/8 0.628 0.641 1.073 0.203 0.156 5/8 Reg Hi Alloy
3/4 0.753 0.766 1.265 0.234 0.188 3/4 Reg Hi Alloy
7/8 0.878 0.894 0.483 0.107 0.047 7/8 Reg Hi Alloy
1 1.003 1.024 1.656 0.297 0.25 1 Reg Hi Alloy