The Ohio Nut and Bolt Company manufactures leg levelers, leg glides and adjusting screws, resistance weld fasteners, weld nuts, weld screws,weld pins, economy t nuts, in inch and metric threads, C1010 low carbon steel and 302 stainless steel (18-8)
(800) 362-0291
33 Lou Groza Blvd. Berea, Ohio 44017-1293 • E-Mail Request
Phone: (440) 243-0200 • FAX: (440) 243-4006
A Div. of Fastener Ind., Inc.
Buckeye Fasteners, Inc; For Pricing Under 20,000 Pieces & For Distributors
Nuts Screws Levelers Pins Special Purpose
3D CAD Models-Pricing-Online Ordering
Select product category, Choose style and type, Click on individual part numbers, Sign in to view prices,
CAD Models or place orders.
(*Billing info. at registration requested for order placement only. CAD downloads are free of charge.)

Please select Back to return to the previous page.

Inch External Threads

Unified Standard Class 2A (External)
Thread Size Thread Symbol Major Diameter Pitch Diameter UNR Minor
Diameter
Minimum Maximum Minimum Maximum Max. (Ref.)
# 6-32 UNC-2A .1312 .1372 .1141 .1169 .1000
# 8-32 UNC-2A .1571 .1631 .1399 .1428 .1259
#10-24 UNC-2A .1818 .1890 .1586 .1619 .1394
#10-32 UNF-2A .1831 .1891 .1658 .1688 .1519
1/4-20 UNC-2A .2408 .2489 .2127 .2164 .1894
1/4-28 UNF-2A .2425 .2490 .2225 .2258 .2064
5/16-18 UNC-2A .3026 .3113 .2712 .2752 .2452
5/16-24 UNF-2A .3042 .3114 .2806 .2843 .2618
3/8-16 UNC-2A .3643 .3737 .3287 .3331 .2992
3/8-24 UNF-2A .3667 .3739 .3430 .3468 .3243
1/2-13 UNC-2A .4876 .4985 .4435 .4485 .4069

Inch Internal Threads

Unified Standard Class 2B (Internal)
Thread Size Thread Symbol Minor Diameter Pitch Diameter Major
Diameter
Minimum Maximum Minimum Maximum Minimum
# 6-32 UNC-2B .104 .114 .1177 .1214 .1380
# 8-32 UNC-2B .130 .139 .1437 .1475 .1640
#10-24 UNC-2B .145 .156 .1629 .1672 .1900
#10-32 UNF-2B .156 .164 .1697 .1736 .1900
1/4-20 UNC-2B .196 .207 .2175 .2224 .2500
1/4-28 UNF-2B .211 .220 .2268 .2311 .2500
5/16-18 UNC-2B .252 .265 .2764 .2817 .3125
5/16-24 UNF-2B .267 .277 .2854 .2902 .3125
3/8-16 UNC-2B .307 .321 .3344 .3401 .3750
3/8-24 UNF-2B .330 .340 .3479 .3528 .3750
1/2-13 UNC-2B .417 .434 .4500 .4565 .5000

Copyright - 2008 The Ohio Nut and Bolt Company • All rights reserved.