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Recoil Thread Repair Kits Inch Sizes American Thread Forms

UNC  |     UNF    |   NPT |     8 TPI      SPECIALS   |    Range Kits

recoil kit

Why use RECOIL inserts ?

recoil insert

Recoil screw threads inserts are used to produce new threads or can be used to repair threaded holes which have been damaged or stripped and refurnish them to their original thread size.

The Recoil insert, which is larger in diameter than the tapped hole is compressed during installation then allowed go spring back, permanently anchoring the insert in the tapped hole.

Because of the larger diameter, the Recoil insert has a greater contact area and is normally stronger than the original threads


recoil thread repair kit Features

  • Create stronger and more efficient threads.
  • Simple and easy to use.
  • Designed for use in material such as alloys, steel, magnesium, plastic etc.
  • Simplifies changeover from inch to metric, and vice versa
  • Meets all current Military and Aviation Specifications
  • Interchangeable with other brands of helically wound inserts.
  • Wide temperature range of up to 800°F (430°C)
  • Specials available in Inconel or Phosphor Bronze
  • Recoil is ISO 9001 registered.



 
 

UNC

Size Part # Insert
Per Kit
Drill Size
MM INCH
2-56 STK2-56 10 2.30 3/32
3-48 STK3-48 10 2.70 #36
4-40 STK4-40 10 3.00 #31
5-40 STK5-40 10 3.40 #29
6-32 STK6-32 10 3.80 #25
         
8-32 STK8-32 10 4.40 11/64
10-24 STK10-24 10 5.10 13/64
12-24 STK12-24 10 5.80 15/64
1/4-20 STK1/4-20 10 6.7 17/64
5/16-18 STK5/16-18 10 8.30 21/64
         
3/8-16 STK3/8-16 10 9.90 25/64
7/16-14 STK7/16-14 5 11.50 29/64
1/2-13 STK1/2-13 5 13.00 17/32
9/16-12 STK9/16-12 5 15.00 19/32
5/8-11 STK5/8-11 10 16.50 21/32
         
3/4-10 STK3/4-10 10 19.80 25/32
7/8-9 STK7/8-9 5 23.00 29/32
1-8 STK1-8 5 26.00 1-1/32
1-1/8-7 STK1.1/8-7 5 29.50 1-5/32
         
1-1/4-7 STK1.1/4-7 5 33.00 1-9/32
1-3/8-6 STK1.3/8-6 5 36.00 1-13/32
1-1/2-6 STK1.1/2-6 4 39.00 1-17/32
Size Part # Insert
Per Kit
Drill Size
MM INCH
note: The Sets include a High Speed Steel Tap, Inserts and Installation/Tang Break Off Tool.
A drill is not included but the recommended size is listed.

 
 

UNF

Size Part # Insert
Per Kit
Drill Size
MM INCH
3-56 STK3-56 10 2.65 #37
4-48 STK4-48 10 3.00 #31
6-40 STK6-40 10 3.80 #25
8-36 STK8-36 10 4.40 #17
10-32 STK10-32 10 5.10 13/64
         
1/4-28 STK1/4-28 10 6.60 17/64
5/16-24 STK5/16-24 10 8.20 21/64
3/8-24 STK3/8-24 10 9.80 25/64
7/16-20 STK7/16-20 5 11.50 29/64
1/2-20 STK1/2-20 5 13.00 33/64
         
9/16-18 STK9/16-18 5 14.50 37/64
5/8-18 STK5/8-18 5 16.30 41/64
3/4-16 STK3/4-16 5 19.50 49/64
7/8-14 STK7/8-14 5 22.50 57/64
1-12 STK1-12 5 26.00 1-1/64
         
1-14 STK1-14 3 26.00 1-1/64
1-1/8-12 STK1.1/8-12 5 29.50 1-5/32
1-1/4-12 STK1.1/4-12 5 32.50 1-9/32
1-3/8-12 STK1.3/8-12 3 36.00 1-13/32
1-1/2-12 STK1.1/2-12 3 39.00 1-17/32
Size Part # Insert
Per Kit
Drill Size
MM INCH
note: The Sets include a High Speed Steel Tap, Inserts and Installation/Tang Break Off Tool.
A drill is not included but the recommended size is listed.

 
 

NPT

NPT
Size Part # Insert
Per Kit
Drill Size
MM INCH
1/8-27 STK1/8NPT 10 9.90 3/8
1/4-18 STK1/4NPT 10 13.50 33/64
3/8-18 STK3/8NPT 10 17.00 21/32
         
1/2-14 STK1/2NPT 5 21.50 13/16
3/4-14 STK3/4NPT 5 27.00 1-1/64
1-11-1/2 STK1NPT 5 33.50 1-9/32
note: The Sets include a High Speed Steel Tap, Inserts and Installation/Tang Break Off Tool.
A drill is not included but the recommended size is listed.

 
 
 

8 TPI UN SERIES

Size Part # Insert
Per Kit
Drill Size
MM INCH
1 1/8-8 STK1.1/8-8 5 28.50 1-1/8
1 1/4-8 STK1.1/4-8 5 32.00 1-1/4
1 3/8-8 STK1.3/8-8 5 35.00 1-3/8
1 1/2-8 STK1.1/2-8 4 38.00 1-1/2
         
1 5/8-8 STK1.5/8-8 4 41.00 1-5/8
1 3/4-8 STK1.3/4-8 4 44.50 1-3/4
1 7/8-8 STK1.7/8-8 4 47.50 1-7/8
2-8 STK2-8 4   2
note: The Sets include a High Speed Steel Tap, Inserts and Installation/Tang Break Off Tool.
A drill is not included but the recommended size is listed.



 
 

SPECIAL SIZES


Size Part # Insert
Per Kit
Drill Size
MM INCH
UNEF
1/4-32 STK1/4-32 10 6.60 17/64
HARLEY
1/4-24 STK1/4-24 10 6.60 17/64
7/16-16 STK7/16-16 5 11.50 29/64
CARBURETOR
7/8-20 STK7/8-20 5   7/8
1-20 STK1-20 10   1
CUMMINS-HEAD BOLT
11/16-16 STK11/16-16 5 18.00 45/64
note: The Sets include a High Speed Steel Tap, Inserts and Installation/Tang Break Off Tool.
A drill is not included but the recommended size is listed.

 
 

Range Kits


Parts # Includes
STKS33004 UNC 1/4,5/16,3/8,7/16,1/2
STKS34004 UNF 1/4,5/16,3/8,7/16,1/2
STKS36000 NPT 1/8,1/4,3/8,1/2
Range kits include high speed steel Taps, Inserts and Installation/Tang Break Off Tools



link to Metric Threads Forms

link to British Threads Forms

link to Recoil Screw Thread Inserts

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Trademarks are the properties of their respective owner(s).

(December 2021) September 2020, April 2017, October 2016, April 2011, March 2011, October 2009, January 2007

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

Servicing the US 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 and 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 and 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 and Tobago , Truk , Tunisia , Turkey , Turkmenistan , Turks and 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 and Futuna Islands , Western Samoa , Yap , Yemen , Zambia , Zimbabwe


We try to ship to the world's 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