Ball Knobs - Tapped

Ball Knob - Aluminum Tapped

JBF National’s tapped ball knobs are made from the highest quality  brass, steel and stainless steel. Finished to a high polish, these ball knobs ensure continued operator grip comfort, and aesthetically pleasing looks.  Please see component diagram below.

Aluminum Tapped

JBF National Aluminum Part NumberThread SizeKnob Dia (A)Thread Depth (B)Ship Wt (lbs)
1BKAT-106010-243/43/80.02
1BKAT-106110-323/43/80.02
2BKAT-106210-2413/80.04
2BKAT-106310-3213/80.04
2BKAT-10641/4-2011/20.04
2BKAT-10651/4-2811/20.04
2BKAT-10665/16-1811/20.04
2BKAT-10675/16-2411/20.04
2BKAT-10683/8-1611/20.04
3BKAT-10691/4-201 3/85/80.10
3BKAT-10701/4-281 3/85/80.10
3BKAT-10715/16-181 3/85/80.10
3BKAT-10725/16-241 3/85/80.10
3BKAT-10733/8-161 3/85/80.10
3BKAT-10743/8-241 3/85/80.10
3BKAT-10757/16-201 3/85/80.10
3BKAT-10761/2-131 3/85/80.10
3BKAT-10771/2-201 3/85/80.10
4BKAT-10783/8-161 7/83/40.10
4BKAT-10793/8-241 7/83/40.32
4BKAT-10801/2-131 7/83/40.32
4BKAT-10811/2-201 7/83/40.32
4BKAT-10825/8-111 7/83/40.32
4BKAT-10835/8-181 7/83/40.32

Brass Tapped

JBF National Brass Part NumberThread SizeKnob Dia (A)Thread Depth (B)Ship Wt (lbs)
1BKBT-108410-243/43/80.02
1BKBT-108510-323/43/80.02
2BKBT-108610-2413/80.04
2BKBT-108710-3213/80.04
2BKBT-10881/4-2011/20.04
2BKBT-10891/4-2811/20.04
2BKBT-10905/16-1811/20.04
2BKBT-10915/16-2411/20.04
2BKBT-10923/8-1611/20.04
3BKBT-10931/4-201 3/85/80.10
3BKBT-10941/4-281 3/85/80.10
3BKBT-10955/16-181 3/85/80.10
3BKBT-10965/16-241 3/85/80.10
3BKBT-10973/8-161 3/85/80.10
3BKBT-10983/8-241 3/85/80.10
3BKBT-10997/16-201 3/85/80.10
3BKBT-11001/2-131 3/85/80.10
3BKBT-11011/2-201 3/85/80.10
4BKBT-11023/8-161 7/83/40.10
4BKBT-11033/8-241 7/83/40.32
4BKBT-11041/2-131 7/83/40.32
4BKBT-11051/2-201 7/83/40.32
4BKBT-11065/8-111 7/83/40.32
4BKBT-11075/8-181 7/83/40.32

Steel Tapped

JBF National Steel Part NumberThread SizeKnob Dia (A)Thread Depth (B)Ship Wt (lbs)
1BKST-113210-243/43/80.02
1BKST-113310-323/43/80.02
2BKST-113410-2413/80.04
2BKST-113510-3213/80.04
2BKST-11361/4-2011/20.04
2BKST-11371/4-2811/20.04
2BKST-11385/16-1811/20.04
2BKST-11395/16-2411/20.04
2BKST-11403/8-1611/20.04
3BKST-11411/4-201 3/85/80.10
3BKST-11421/4-281 3/85/80.10
3BKST-11435/16-181 3/85/80.10
3BKST-11445/16-241 3/85/80.10
3BKST-11453/8-161 3/85/80.10
3BKST-11463/8-241 3/85/80.10
3BKST-11477/16-201 3/85/80.10
3BKST-11481/2-131 3/85/80.10
3BKST-11491/2-201 3/85/80.10
4BKST-11503/8-161 7/83/40.10
4BKST-11513/8-241 7/83/40.32
4BKST-11521/2-131 7/83/40.32
4BKST-11531/2-201 7/83/40.32
4BKST-11545/8-111 7/83/40.32
4BKST-11555/8-181 7/83/40.32

Stainless Steel Tapped

JBF National Stainless Steel Part NumberThread SizeKnob Dia (A)Thread Depth (B)Ship Wt (lbs)
1BKT-1108SS10-243/43/80.02
1BKT-1109SS10-323/43/80.02
2BKT-1110SS10-2413/80.04
2BKT-1111SS10-3213/80.04
2BKT-1112SS1/4-2011/20.04
2BKT-1113SS1/4-2811/20.04
2BKT-1114SS5/16-1811/20.04
2BKT-1115SS5/16-2411/20.04
2BKT-1116SS3/8-1611/20.04
3BKT-1117SS1/4-201 3/85/80.10
3BKT-1118SS1/4-281 3/85/80.10
3BKT-1119SS5/16-181 3/85/80.10
3BKT-1120SS5/16-241 3/85/80.10
3BKT-1121SS3/8-161 3/85/80.10
3BKT-1122SS3/8-241 3/85/80.10
3BKT-1123SS7/16-201 3/85/80.10
3BKT-1124SS1/2-131 3/85/80.10
3BKT-1125SS1/2-201 3/85/80.10
4BKT-1126SS3/8-161 7/83/40.10
4BKT-1127SS3/8-241 7/83/40.32
4BKT-1128SS1/2-131 7/83/40.32
4BKT-1129SS1/2-201 7/83/40.32
4BKT-1130SS5/8-111 7/83/40.32
4BKT-1131SS5/8-181 7/83/40.32