SizeCodeClassD (mm)T (mm)Clearance holesRecessTypeStock
3/16W24TYEW03MDNEBC20741
TYGW03MDNEBC2593
7/32W24TYEW3HMDNEBC20741
TYEW04NDNEBC207
1/4W20TYGW04NDNEBC25941
TYJW04NDNEBC3813
5/16W18TYGW05ODNEBC TYJW05ODNEBC25 389 1341○ △
TYGW06PDNEBC2595
3/8W16TYJW06PDNEBC38131
TYMW06PDNEBC50164
7/16W14TYJW07QDNEBC TYMW07QDNEBC38 5013 1641
1/2W12TYJW08SDNEBC TYMW08SDNEBC38 5013 1641○ △
9/16W12TYJW09SDNEBC381351
5/8W11TYJW10UDNEBC TYMW10UDNEBC38 5013 165 41
3/4W10TYMW12VDNEBC501651
7/8W9TYMW14WDNEBC501661
1 W8TYMW16XDNEBC501661
1 1/8W7TYRW18YDNEBC632062
1 1/4W7TYRW20YDNEBC632062
1 3/8W6TYUW22ZDNEBC752562
1 1/2W6TYUW24ZDNEBC752562
For Screw Threadsused on Sewing Machines
SizeCodeClassD (mm)T (mm)Clearance holesRecessTypeStock
3/32SM56TYES06EDNEBC20731
1/8SM40TYES08HDNEBC20731
1/8SM44TYES08GDNEBC20731
9/64SM40TYES09HDNEBC20731
11/64SM40TYES11HDNEBC20741
3/16SM28TYES12KDNEBC20741
3/16SM32TYES12JDNEBC20741
7/32SM32TYES14JDNEBC20741
15/64SM28TYES15KDNEBC20741
1/4SM24TYES16MDNEBC20741
1/4SM40TYES16HDNEBC20741