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Screw Thread Inserts Information

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Insert Specifications         Cross References

 
 

Insert Specifications

NC Insert Specifications         NF Insert Specifications

 
 
Unified Coarse Specifications, Free Running (series ST) and Locking Inserts (series STL)
Nominal
Thread Size		 Outside Diameter Number of coils per insert
Min. Max. 1 Dia. 1.5 Dia. 2 Dia. 2.5 Dia. 3 Dia.
2(.086)-56 .110 .119 3 5-1/4 7-3/8 9-5/8 11-7/8
3(.099)-48 .128 .139 2-7/8 5 7-1/4 9-3/8 11-7/8
4(.112)-40 .144 .159 2-3/4 4-3/4 6-3/4 8-7/8 10-7/8
 
5(.125)-40 .158 .173 3-1/4 5-1/2 7-3/4 10 12-1/4
6(.138)-32 .178 .193 2-3/4 4-3/4 6-7/8 8-7/8 10-7/8
8(.164)-32 .205 .220 3-1/2 6 8-3/8 10-3/4 13-1/4
 
10(.190)-24 .244 .259 2-7/8 5 7-1/8 9-1/4 11-3/8
12(.216)-24 .270 .285 3-1/2 6 8-3/8 10-5/8 13-1/8
1/4(.250)-20 .310 .330 3-3/8 5-3/4 8 10-3/8 12-3/4
 
5/18(.3125)-18 .380 .400 4 6-5/8 9-1/4 11-7/8 14-5/8
3/8(.3750)-16 .452 .472 4-3/8 7-1/4 10 12-7/8 15-3/4
7/16(.4375)-14 .526 .551 4-1/2 7-3/8 10-1/4 13-1/8 16-1/8
1/2(.5000)-13 .597 .662 4-7/8 7-7/8 11 14-1/8 17-1/8
 
9/16(.5625)-12 .669 .694 5-1/8 8-1/4 11-1/2 14-3/4 17-1/8
5/8(.6250)-11 .742 .767 5-1/4 8-1/2 11-3/4 15 18-3/8
3/4(.750)-10 .881 .906 5-7/8 9-3/8 13 16-1/2 20-1/8
7/8(.8750)-9 1.022 1.052 6-1/4 10 13-3/4 17-1/2 21-1/4
1(1.0000)-8 1.166 1.196 6-3/8 10-1/8 14 17-3/4 21-5/8
 
1-1/8(1.1250)-7 1.315 1.355 6-1/8 9-7/8 13-5/8 17-1/2 21-1/4
1-1/4(1.2500)-7 1.443 1.483 6-1/8 9-7/8 13-5/8 17-1/2 21-1/4
1-3/8(1.3750)-6 1.598 1.643 6-1/2 10-1/2 14-3/8 18-3/8 22-1/4
1-1/2(1.5000)-6 1.727 1.772 7-1/4 11-1/2 15-7/8 20-1/8 24-1/2


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Unified Fine Specifications, Free Running (series ST )and Locking Inserts ( series STL)
Nominal
Thread Size		 Outside Diameter Number of coils per insert
Min. Max. 1 Dia. 1.5 Dia. 2 Dia. 2.5 Dia. 3 Dia.
3(.099)-56 .131 .146 3-3/8 5-5/8 8 10-3/8 12-5/8
4(.112)-48 .147 .162 3-3/8 5-3/8 7-7/8 10-1/4 12-1/2
6(.138)-40 .173 .193 3-1/2 6 8-3/8 10-3/4 13-1/4
8(.164)-36 .204 .224 3-7/8 6-1/2 9-1/8 11-5/8 14-1/4
 
10(.190)-32 .236 .256 4-1/8 6-7/8 9-1/2 12-1/4 14-7/8
1/4(.250)-28 .306 .326 5 8-1/4 11-3/8 14-1/2 17-5/8
5/16(.3125)-24 .380 .400 5-1/2 8-7/8 12-1/4 15-7/8 19
3/8(.3750)-24 .448 .468 6-7/8 11 15 19-1/8 23-1/8
 
7/16(.4375)-20 .524 .549 6-5/8 10-5/8 14-5/8 18-1/2 22-1/2
1/2(.5000)-20 .592 .617 7-7/8 12-3/8 16-7/8 21-3/8 25-7/8
9/16(.5625)-18 .666 .691 8 12-1/2 17-1/8 21-3/4 26-1/4
5/8(.6250)-18 .733 .758 9 14-1/8 19-1/4 24-1/4 29-3/8
 
3/4(.750)-16 .876 .901 9-3/4 15-1/8 20-5/8 26 31-1/2
7/8(.8750)-14 1.021 1.051 9-7/8 15-1/2 21-1/8 26-5/8 32-1/4
1(1.0000)-14 1.156 1.186 11-1/2 17-7/8 24-1/4 30-5/8 37
1(1.0000)-12 1.169 1.199 9-5/8 15 20-1/2 26 31-1/2
 
1-1/8(1.1250)-12 1.304 1.334 11-1/8 17-1/4 23-3/8 29-1/2 35-3/4
1-1/4(1.2500)-12 1.439 1.469 12-1/2 19-3/8 26-1/4 33 39-7/8
1-3/8(1.3750)-12 1.575 1.610 13-3/4 21-3/8 28-7/8 36-1/2 44
1-1/2(1.5000)-12 1.710 1.745 15-1/4 23-1/2 31-5/8 39-7/8 48-1/8



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Cross References

Inch National Coarse UNC
Free-Running Series Screw Locking Series
Newman #
ST		 MS #
122		 Recoil #
0		 Heli-coil #
1185-		 Newman #
STL		 MS #
21209-C		 Recoil #
1		 Heli-coil #
3585-
1/4-20x0375 122121 03042 4CNx0375 1/4-20x0375 21209-C4-15 13043 4cnx0375


Inch National Fine UNF
Free-Running Series Screw Locking Series
Newman #
ST		 MS #
124		 Recoil #
0		 Heli-coil #
1191-		 Newman #
STL		 MS #
21209-		 Recoil #
1		 Heli-coil #
3591-
1/4-28x0375 124696 04043 4CNx0375 1/4-28x0375 F4-15 14043 4cnx0375


Metric Coarse
Free-Running Series Screw Locking Series
Newman #
STM		 M.A. #
3279-		 Recoil #
0		 Heli-coil #
1084-		 Newman #
STLM		 M.A. #
3329-		 Recoil #
1		 Heli-coil #
4184-
6x1x9.0 156 05063 6CNx9.0 6x1x9.0 156 15063 6CNx9.0




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links to:
Recoil Screw Thread Insert General Page   |    Thread Kits, American Thread Forms
Thread Kits, Metric Thread Forms   |    Thread Kits, British Thread Forms

 

February 2022, October  2016, March 2012, October 2009, Fabruary 1999

The descriptions, illustrations, specifications, dimensions, and part numbers are subject to change without notice.

servicing the Canadian provinces and territories of Newfoundland, NF, NL, Nova Scotia, NS, New Brunswick, NB, Prince Edward Island, PEI, PE, Quebec, PQ, QC, Ontario, ON, Manitoba, MB, Saskatchewan, SK, Alberta, AB, British Columbia, BC, Northwest Territories, NT, Nunavut, NU, Yukon, YT, servicing Canadian cities, Toronto, Mississauga, Scarborough, Laval , Montreal, Montréal, Vancouver, Ottawa, Gatineau, Calgary, Edmonton, Québec City, Winnipeg, Hamilton, Kitchener, Cambridge, Waterloo, London, St. Catharines , Niagara, Halifax, Oshawa, Victoria, Windsor, Saskatoon, Regina, Sherbrooke, St. John's, Barrie, Kelowna, Abbotsford, Mission, Sudbury Kingston, Saguenay, Trois-Rivieres, Trois Rivieres, Trois-Rivières, Guelph, Moncton, Brantford, Saint John, Thunder Bay, Peterborough, Ajax, Aurora, Brampton, Brock, Burlington, Caledon, Clarington, Durham Region, Oshawa, Pickering, Whitby, Halton Hills, Milton, Oakville, Mississauga, New market, Richmond Hill, Vaughn, Orangeville, servicing US cities, New York, Los Angeles, Chicago, Houston, Philadelphia, Phoenix, San Antonio, San Diego, Dallas, San Jose, Austin, Jacksonville, San Francisco, Indianapolis, Columbus, Fort Worth, Charlotte, Seattle, Denver, El Paso, Detroit, Washington, Boston, Memphis, Nashville, Portland, Oklahoma City, Las Vegas, Baltimore, Louisville, Milwaukee, Albuquerque, Tucson, Fresno, Sacramento, Kansas City, Long Beach, Mesa, Raleigh, Omaha, Miami, Oakland, Minneapolis, Tulsa, Wichita, New Orleans, Arlington, Cleveland, Bakersfield, Tampa, Aurora, Honolulu, Anaheim, Santa Ana, Corpus Christi, Riverside, St. Louis, Lexington, Stockton, Pittsburgh, Saint Paul, Anchorage, Cincinnati, Henderson, Greensboro, Plano, Newark, Toledo, Lincoln, Orlando, Chula Vista, Jersey City, Chandler, Fort Wayne, Buffalo, Durham, St. Petersburg, Irvine, Laredo, Lubbock, Madison, Gilbert, Norfolk, Reno, Winston Salem, Glendale, Hialeah, Garland, Scottsdale, Chesapeake, North Las Vegas, Fremont, Baton Rouge, Richmond, Boise, San Bernardino, Spokane, Birmingham, Modesto, Des Moines, Rochester, Tacoma, Fontana, Oxnard, Moreno Valley, Fayetteville, Huntington Beach, Yonkers, Glendale, Aurora, Montgomery, Columbus, Amarillo, Little Rock, Akron, Shreveport, Augusta, Grand Rapids, Mobile, Salt Lake City, Huntsville, Tallahassee, Grand Prairie, Overland Park, Knoxville, Worcester, Brownsville, Newport News, Santa Clarita, Port St. Lucie, Providence, Fort Lauderdale, Chattanooga, Tempe, Oceanside, Garden Grove, Rancho Cucamonga, Cape Coral, Santa Rosa, Vancouver, Sioux Falls, Peoria, Ontario, Jackson, Elk Grove, Springfield, Pembroke Pines, Salem, Corona, Eugene, McKinney, Fort Collins, Lancaster, Cary, Palmdale, Hayward, Salinas, Frisco, Springfield, Pasadena, Macon, Alexandria, Pomona, Lakewood, Sunnyvale, Escondido, Kansas City, Hollywood, Clarksville, Torrance, Rockford, Joliet, Paterson, Bridgeport, Naperville, Savannah, Mesquite, Syracuse, Pasadena, Orange, Fullerton, Killeen, Dayton, McAllen, Bellevue, Miramar, Hampton, West Valley City, Warren, Olathe, Columbia, Thornton, Carrollton, Midland, Charleston, Waco and the states of Alabama, AL, Alaska, AK, Arizona, AZ, Arkansas, AR, California, CA, Colorado, CO, Connecticut, CT, Delaware, DE, District of Columbia, DC, Florida, FL, Georgia, GA, Hawaii, HI, Idaho, ID, Illinois, IL, Indiana, IN, Iowa, IA, Kansas, KS, Kentucky, KY, Louisiana, LA, Maine, ME, Maryland, MD, Massachusetts, MA, Michigan, MI, Minnesota, MN, Mississippi, MS, Missouri, MO, Montana, MT, Nebraska, NE, Nevada, NV, New Hampshire, NH, New Jersey, NJ, New Mexico, NM, New York, NY, North Carolina, NC, North Dakota, ND, Ohio, OH, Oklahoma, OK, Oregon, OR, Pennsylvania, PA, Rhode Island, RI, South Carolina, SC, South Dakota, SD, Tennessee, TN, Texas, TX, Utah, UT, Vermont, VT, Virginia, VA, Washington, WA, West Virginia, WV, Wisconsin, WI, Wyoming, WY We can ship to Afghanistan , Aland Islands , Albania , Algeria , American Samoa , AS, Andorra , Angola , Anguilla , Antigua & Barbuda , Argentina , Armenia , Aruba , Australia , Austria , Azerbaijan , Azores , Bahamas , Bahrain , Bangladesh , Barbados , Belarus , Belgium , Belize , Benin , Bermuda , Bhutan , Bolivia , Bonaire , Bosnia , Botswana , Brazil , British Virgin Isles , Brunei , Bulgaria , Burkina Faso , Burundi , Cambodia , Cameroon , Canada , Canary Islands , Cape Verde , Cayman Islands , Central African Republic , Chad , Chile , China , Colombia , Comoros , Congo , Cook Islands , Costa Rica , Croatia , Curacao , Cyprus , Czech Republic , Democratic Republic of Congo , Denmark , Djibouti , Dominica , Dominican Republic , Ecuador , Egypt , El Salvador , England , Equatorial Guinea , Eritrea , Estonia , Ethiopia , Faeroe Islands , Fiji , Finland , France , French Guiana , French Polynesia , Gabon , Gambia , Georgia , Germany , Ghana , Gibraltar , Greece , Greenland , Grenada , Guadeloupe , Guam , GU, Guatemala , Guernsey , Guinea , Guinea-Bissau , Guyana , Haiti , Holland , Honduras , Hong Kong , Hungary , Iceland , India , Indonesia , Iraq , Ireland , Israel , Italy , Ivory Coast , Jamaica , Japan , Jersey , Jordan , Kazakhstan , Kenya , Kiribati , Kosrae , Kuwait , Kyrgyzstan , Laos , Latvia , Lebanon , Lesotho , Liberia , Libya , Liechtenstein , Lithuania , Luxembourg , Macau , Macedonia (Fyrom) , Madagascar , Madeira , Malawi , Malaysia , Maldives , Mali , Malta , Marshall Islands , MH, Martinique , Mauritania , Mauritius , Mayotte , Mexico , Micronesia , Moldova , Monaco , Mongolia , Montenegro , Montserrat , Morocco , Mozambique , N. Mariana Islands , Namibia , Nepal , Netherlands , Netherlands Antilles , New Caledonia , New Zealand , Nicaragua , Niger , Nigeria , Norfolk Island , Northern Ireland , Norway , Oman , Pakistan , Palau , PW, Panama , Papua New Guinea , Paraguay , Peru , Philippines , Poland , Ponape , Portugal , Puerto Rico , PR, Qatar , Reunion , Romania , Rota , Russia , Rwanda , Saba , Saipan , San Marino , Saudi Arabia , Scotland , Senegal , Serbia , Seychelles , Sierra Leone , Singapore , Slovakia , Slovenia , Solomon Islands , South Africa , South Korea , Spain , Sri Lanka , St. Barthelemy , St. Christopher , St. Croix , St. Eustatius , St. John , St. Kitts & Nevis , St. Lucia , St. Maarten , St. Martin , St. Thomas , St. Vincent/Grenadines , Suriname , Swaziland , Sweden , Switzerland , Syria , Tahiti , Taiwan , Tajikistan , Tanzania , Thailand , Timor Leste , Tinian , Togo , Tonga , Tortola , Trinidad & Tobago , Truk , Tunisia , Turkey , Turkmenistan , Turks & Caicos Islands , Tuvalu , Uganda , Ukraine , Union Island , United Arab Emirates , United Kingdom , United States , Uruguay, US Virgin Islands , VI, Uzbekistan , Vanatu , Vatican City State , Venezuela , Vietnam , Virgin Gorda , Wales , Wallia & Futuna Islands , Western Samoa , Yap , Yemen , Zambia , Zimbabwe
we try to ship to the world largest cities Tokyo,Japan, Seoul, South Korea, Mexico City, Mexico , New York City, USA , Mumbai, India , Jakarta, Indonesia , Sáo Paulo, Brazil, Delhi, India , Osaka/Kobe, Japan , Shanghai, China , Manila, Philippines ,Los Angeles, USA ,Calcutta, India , Moscow, Russian Fed., Cairo, Egypt, Lagos, Nigeria, Buenos Aires, Argentina , London, United Kingdom , Beijing, China , Karachi, Pakistan , Dhaka, Bangladesh , Rio de Janeiro, Brazil ,Tianjin, China , Paris, France , Istanbul, Turkey , Lima, Peru , Tehrãn, Iran, Bangkok, Thailand , Chicago, USA , Bogotá, Colombia , Hyderabad, India , Chennai, India , Essen, Germany , Ho Chi Minh City, Vietnam , Hangzhou, China , Hong Kong, China , Lahore, Pakistan , Shenyang, China , Changchun, China , Bangalore, India , Harbin, China , Chengdu, China , Santiago, Chile ,Guangzhou, China , St. Petersburg, Russian Fed , Kinshasa, DRC , Baghdãd, Iraq , Jinan, China , Houston, USA , Toronto, Canada, Yangon, Myanmar (Burma), Alger, Algeria Philadelphia, USA, Qingdao, China , Milano, Italy , Pusan, South Korea, Belo Horizonte, Brazil, Almadabad, India , Madrid, Spain , San Francisco, USA, Alexandria, Egypt , Washington DC, USA , Wuhan, China , Dallas, USA , Guadalajara, Mexico, Chongging, China , Medellin, Colombia, Detroit, USA , Handan, China , Frankfurt, Germany , Porto Alegre, Brazil , Hanoi, Vietnam , Sydney, Australia, Santo Domingo, Dom. Rep., Singapore, Singapore , Casablanca, Morocco , Katowice, Poland , Pune, India , Bangdung, Indonesia, Monterrey, Mexico ,Montréal, Canada , Nagoya, Japan , Nanjing, China , Abidjan, Côte d'Ivoire, Xi'an, China , Berlin, Germany , Riyadh, Saudi Arabia, Recife, Brazil , Dusseldorf, Germany, Ankara, Turkey , Melbourne, Australia, Salvador, Brazil , Dalian, China , Caracas, Venezuela, Adis Abeba, Ethiopia, Athina, Greece, Cape Town, South Africa, Koln, Germany , Maputo, Mozambique, Napoli, Italy