Inch Thread Gage Member Lengths

(Sizes #0 Through 3 1/4″)
NOTE: These are standard lengths for most gages with the nominal sizes shown- some size/pitch combinations have longer standard members – if you need longer member lengths, contact us for more information

Thread SizeTaperlock – GOTaperlock – NO GOReversible – GOReversible – NO GORing – GORing – NO GOSetting Plug – GOSetting Plug – NO GO
#0 & #11/4″3/16″1/2″1/2″3/32″3/32″7/32″7/32″
#21/4″3/16″5/8″5/8″3/32″3/32″7/32″7/32″
#31/4″3/16″5/8″5/8″5/32″5/32″3/8″3/8″
#4 & #55/16″7/32″5/8″5/8″5/32″5/32″3/8″3/8″
#65/16″7/32″3/4″3/4″5/32″5/32″3/8″3/8″
#813/32″9/32″3/4″3/4″3/16″3/16″13/32″13/32″
#10 & #1213/32″9/32″7/8″7/8″3/16″3/16″13/32″13/32″
1/4″1/2″5/16″7/8″7/8″11/32″11/32″3/4″3/4″
5/16″1/2″5/16″1″1″11/32″11/32″3/4″3/4″
3/8″3/4″3/8″1 1/8″1 1/8″7/16″7/16″1″1″
7/16″3/4″3/8″1 1/4″1 1/4″7/16″7/16″1″1″
1/2″3/4″3/8″1 3/8″1 3/8″7/16″7/16″1″1″
9/16″7/8″1/2″1 1/2″1 3/8″9/16″9/16″1 1/4″1 1/4″
5/8″7/8″1/2″1 1/2″1 3/8″9/16″9/16″1 1/4″1 1/4″
11/16″7/8″1/2″1 3/4″1 3/8″9/16″9/16″1 1/4″1 1/4″
3/4″7/8″1/2″1 3/4″1 3/8″9/16″9/16″1 1/4″1 1/4″
13/16″1″5/8″——9/16″9/16″1 1/4″1 1/4″
7/8″1″5/8″——11/16″11/16″1 1/2″1 1/2″
15/16″1″5/8″——11/16″11/16″1 1/2″1 1/2″
1″, 1 1/16″, & 1 1/8″1″5/8″——11/16″11/16″1 1/2″1 1/2″
1 3/16″1″3/4″——3/4″3/4″1 5/8″1 5/8″
1 1/4″,
1 5/16″,
1 3/8″,
1 7/16″, &
1 1/2″		1″7/8″——3/4″3/4″1 5/8″1 5/8″
1 5/8″,
1 3/4″, &
1 7/8″		1 1/4″7/8″——13/16″13/16″1 7/8″1 7/8″
2″1 3/8″7/8″——13/16″13/16″2″2″
2 1/8″,
2 1/4″,
2 3/8″, &
2 1/2″		1 3/8″7/8″——7/8″7/8″2″2″
2 5/8″ 
&
2 3/4″		1 3/8″7/8″——13/16″13/16″2″2″
2 7/8″,
3″, 
&
3 1/4″		1 3/8″7/8″——7/8″7/8″2″2″