Socket screws are available in regular cap screw and flat and button type. They are generally alloy or stainless steel, but can be provided in monel or other materials. Socket screws are generally of higher precision since the thread tolerances are more stringent. Many socket screw applications adhere to Mil-Spec requirements which we typically provide from stock. Industries served include military, aerospace, defense, mechanical, original equipment manufacturers, petro-chemical, power generation & mass transit.

National Engineered Fasteners is a certified distributor of Set Screws to the following industries; military, aerospace, defense, mechanical, original equipment manufacturers, petro-chemical, power generation & mass transit. Set Screws are composed of alloy steel, corrosion resisting steel, and Chrome-Nickel. Set Screws are available DFAR compliant. 

• AN565

  AN565 Headless Hex and Fluted Socket Setscrew (S/S By NASM565, 13 MAR 1996) Socket Set Screws come in different types and sizes including: AN565, MS18063, MS18064, MS51021, MS51023, MS51029, MS51031, MS51038, MS51045, MS51963, MS51964, MS51965, MS51966, NAS1081. AN565, MILITARY STANDARD SETSCREW-HEXAGON AND FLUTED SOCKET, HEADLESS (13 MAR 1996) (S/S BY NASM565
  

   

• MS18063

  MS18063 Cup Point, Hex Socket Set Screw, Self Locking Element, Alloy Steel Cad Plated (S/S By NASM18063, 22 DEC 1964). Socket Set Screws come in different types and sizes including: AN565, MS18063, MS18064, MS51021, MS51023, MS51029, MS51031, MS51038, MS51045, MS51963, MS51964, MS51965, MS51966, NAS1081. MS18063A, MILITARY STANDARD, SETSCREW, HEXAGON SOCKET, CUP POINT, 250 DEG. F SELF LOCKING ELEMENT, ALLOY STEEL, CADMIUM PLATED (22 DEC 1964) [S/S BY NASM18063]
  

   

• MS18064

  MS18064 Cup Point, Hex Socket Set Screw, Self Locking Element, Corrosion Resisting Steel, Passivated(22 DEC 1964). Socket Set Screws come in different types and sizes including: AN565, MS18063, MS18064, MS51021, MS51023, MS51029, MS51031, MS51038, MS51045, MS51963, MS51964, MS51965, MS51966, NAS1081. MS18064A, MILITARY STANDARD, SETSCREW, HEXAGON SOCKET, CUP POINT, 250 DEG. F SELF LOCKING ELEMENT, CORROSION RESISTING STEEL, PASSIVATED (22 DEC 1964)
  

   

• MS51021

  MS51021 Cup Point Hex Socket Set Screw, Corrosion resisting (Chrome-Nickel) Steel, Passivated and Self Locking (S/S By NASM51021, 29 DEC 1972). Socket Set Screws come in different types and sizes including: AN565, MS18063, MS18064, MS51021, MS51023, MS51029, MS51031, MS51038, MS51045, MS51963, MS51964, MS51965, MS51966, NAS1081. MS51021C, MILITARY STANDARD, SETSCREW-HEXAGON SOCKET, CUP POINT, CORROSION RESISTING (CHROME-NICKEL) STEEL, PASSIVATED, UNC-3A PLAIN AND SELF LOCKING (29 DEC 1972) [S/S BY NASM51021]
  

   

• MS51023

  MS51023 Cup Point Hex socket Set Screw, Corrosion Resisting steel, passivated, UNF-3A, Plain and Self locking (S/S By NASM51023, 29 DEC 1972). Socket Set Screws come in different types and sizes including: AN565, MS18063, MS18064, MS51021, MS51023, MS51029, MS51031, MS51038, MS51045, MS51963, MS51964, MS51965, MS51966, NAS1081. MS51023C, MILITARY STANDARD, SETSCREW-HEXAGON SOCKET, CUP POINT, CORROSION-RESISTING STEEL, PASSIVATED, UNF-3A, PLAIN AND SELF-LOCKING (29 DEC 1972) [S/S BY NASM51023]
  

   

• MS51029

  MS51029 Flat Point Hex socket Set Screw, Corrosion Resisting steel, passivated, UNC-3A, Plain and Self locking (S/S By NASM51029, 29 DEC 1972). Socket Set Screws come in different types and sizes including: AN565, MS18063, MS18064, MS51021, MS51023, MS51029, MS51031, MS51038, MS51045, MS51963, MS51964, MS51965, MS51966, NAS1081. MS51029B, MILITARY STANDARD, SETSCREW-HEXAGON SOCKET, FLAT POINT, CORROSION-RESISTING STEEL, PASSIVATED, UNC-3A, PLAIN AND SELF-LOCKING (29 DEC 1972) [S/S BY NASM51029]
  

   

• MS51031

  MS51031 Flat Point Hex socket Set Screw, Corrosion Resisting steel, passivated, UNF-3A, Plain and Self locking (S/S By NASM51031, 22 DEC 1972). Socket Set Screws come in different types and sizes including: AN565, MS18063, MS18064, MS51021, MS51023, MS51029, MS51031, MS51038, MS51045, MS51963, MS51964, MS51965, MS51966, NAS1081. MS51031B, MILITARY STANDARD, SETSCREW-HEXAGON SOCKET, FLAT POINT, CORROSION-RESISTING STEEL, PASSIVATED, UNF-3A, PLAIN AND SELF-LOCKING (22 DEC 1972) [S/S BY NASM51031]
  

   

• MS51038

  MS51038 Cone Point Hex socket Set Screw, Corrosion Resisting steel, passivated, UNF-3A and UNC-3A, Plain and Self locking (NASM51038, 29 DEC 1972). Socket Set Screws come in different types and sizes including: AN565, MS18063, MS18064, MS51021, MS51023, MS51029, MS51031, MS51038, MS51045, MS51963, MS51964, MS51965, MS51966, NAS1081. MS51038B, MILITARY STANDARD, SETSCREW-HEXAGON SOCKET, CONE POINT, CORROSION-RESISTING STEEL, PASSIVATED, UNC-3A AND UNF-3A, PLAIN AND SELF-LOCKING (29 DEC 1972) [S/S BY NASM51038]
  

   

• MS51045

  MS51045 Half-Dog Point Hex socket Set Screw, Corrosion Resisting steel, passivated, UNC-3A (S/S By NASM54045, 29 DEC 1972). Socket Set Screws come in different types and sizes including: AN565, MS18063, MS18064, MS51021, MS51023, MS51029, MS51031, MS51038, MS51045, MS51963, MS51964, MS51965, MS51966, NAS1081. MS51045B, MILITARY STANDARD, SETSCREW-HEXAGON SOCKET, HALF-DOG POINT, CORROSION-RESISTING STEEL, PASSIVATED, UNC-3A (29 DEC 1972) [S/S BY NASM51045]
  

   

• MS51963

  MS51963 Cup Point Hex Socket Set Screw, Plain and Self Locking, Alloy Steel, Cad Plated, UNC-3A (S/S by NASM51963, 30 SEP 1999). Socket Set Screws come in different types and sizes including: AN565, MS18063, MS18064, MS51021, MS51023, MS51029, MS51031, MS51038, MS51045, MS51963, MS51964, MS51965, MS51966, NAS1081. MS51963C (NOTICE 1), MILITARY STANDARD: SETSCREW-HEXAGON SOCKET, CUP POINT, ALLOY STEEL, CADMIUM PLATED, UNC-3A, PLAIN AND SELF-LOCKING (30 SEP 1999) [SUPERSEDED BY NASM51963]
  

   

• MS51964

  MS51964 Cup Point Hex Socket Set Screw, Plain and Self Locking, Alloy Steel, Cad Plated, UNF-3A (S/S by NASM51964, 09 SEP 1999). Socket Set Screws come in different types and sizes including: AN565, MS18063, MS18064, MS51021, MS51023, MS51029, MS51031, MS51038, MS51045, MS51963, MS51964, MS51965, MS51966, NAS1081. MS51964E (NOTICE 2), MILITARY STANDARD: SETSCREW, HEXAGON SOCKET, CUP POINT, ALLOY STEEL, CADMIUM PLATED, UNF-3A, PLAIN AND SELF-LOCKING (09 SEP 1999) [SUPERSEDED BY NASM51964]
  

   

• MS51965

  MS51965 Flat Point Hex Socket Set Screw, Plain and Self Locking, Alloy Steel, Cad Plated, UNC-3A (S/S by NASM51965, 07 FEB 2000). Socket Set Screws come in different types and sizes including: AN565, MS18063, MS18064, MS51021, MS51023, MS51029, MS51031, MS51038, MS51045, MS51963, MS51964, MS51965, MS51966, NAS1081. MS51965B (NOTICE 1), MILITARY STANDARD: SETSCREW-HEXAGON SOCKET, FLAT POINT, ALLOY STEEL, CADMIUM PLATED, UNC-3A, PLAIN AND SELF-LOCKING (07 FEB 2000) [SUPERSEDED BY NASM51965]
  

   

• MS51966

  MS51966 Flat Point Hex Socket Set Screw, Plain and Self Locking, Alloy Steel, Cad Plated. UNF-3A (S/S by NASM51955, 27 OCT 1999). Socket Set Screws come in different types and sizes including: AN565, MS18063, MS18064, MS51021, MS51023, MS51029, MS51031, MS51038, MS51045, MS51963, MS51964, MS51965, MS51966, NAS1081. MS51966A, MILITARY STANDARD: SETSCREW - HEXAGON SOCKET, FLAT POINT, ALLOY STEEL, CADMIUM PLATED, UNF-3A, PLAIN AND SELF-LOCKING (27 OCT 1999) [SUPERSEDED BY NASM51955]
  

   

• NAS1081

  NAS1081 Self Locking Socket Set Screw. Socket Set Screws come in different types and sizes including: AN565, MS18063, MS18064, MS51021, MS51023, MS51029, MS51031, MS51038, MS51045, MS51963, MS51964, MS51965, MS51966, NAS1081. NAS1081 SETSCREW - SELF LOCKING

Socket head cap screws are composed of cadium and steel and come in a variety of sizes. Socket head cap screws are resistant to corrosion. Socket head cap screws pass all military requirements. All socket head cap screws are DFAR compliant

• MS16995

  MS16995 Socket Hex Cap Sheet Screw, Corrosion Resistant Steel, UNC-3A (S/S By NASM16995 25 Apr 1997) Socket Cap Screws come in different types and sizes including: MS21295, MS16995, MS16996, MS16997, MS16998, MS24667, MS24671, MS24672, MS24673, MS24674, MS24677, MS24678, MS51975, NAS608, NAS609. MS16995H, MILITARY SPECIFICATION SHEET SCREW, CAP, SOCKET HEAD- HEXAGON, CORROSION RESISTANT STEEL, UNC-3A (25 APR 1997) [S/S BY NASM16995]
  

   

• MS16996

  MS16996 Socket Hex Cap Sheet Screw, Corrosion Resistant Steel, UNF-3A (S/S By NASM16996 24 JUN 1994) Socket Cap Screws come in different types and sizes including: MS21295, MS16995, MS16996, MS16997, MS16998, MS24667, MS24671, MS24672, MS24673, MS24674, MS24677, MS24678, MS51975, NAS608, NAS609. MS16996F, MILITARY SPECIFICATION SHEET SCREW, CAP, SOCKET HEAD- HEXAGON, CORROSION RESISTANT STEEL, UNC-FA (24 JUNE 1994) [S/S BY NASM16996]
  

   

• MS16997

  MS16997 Socket Head Cap Screw, Self Locking, Alloy Steel Cadium Plated UNC-3A (S/S By NAS1352 31 DEC 1976). Socket Cap Screws come in different types and sizes including: MS21295, MS16995, MS16996, MS16997, MS16998, MS24667, MS24671, MS24672, MS24673, MS24674, MS24677, MS24678, MS51975, NAS608, NAS609. MS16997D, MILITARY SPECIFICATION SHEET SCREW, CAP, SOCKET HEAD AND SCREW, CAP, SOCKET HEAD, SELF-LOCKING, ALLOY STEEL, CADMIUM PLATED, UNC-3A (31 DEC 1976) [S/S BY NAS1352]
  

   

• MS16998

  MS16998 Socket Head Cap Screw, Self Locking, Alloy Steel Cadium Plated UNF-3A (S/S By NAS1351 31 DEC 1976). Socket Cap Screws come in different types and sizes including: MS21295, MS16995, MS16996, MS16997, MS16998, MS24667, MS24671, MS24672, MS24673, MS24674, MS24677, MS24678, MS51975, NAS608, NAS609. MS16998E, MILITARY SPECIFICATION SHEET SCREW, CAP, SOCKET HEAD AND SCREW, CAP, SOCKET HEAD, SELF-LOCKING, ALLOY STEEL, CADMIUM PLATED, UNF-3A (31 DEC 1976) [S/S BY NAS1351]
  

   

• MS21262

  MS21262 Cylindrical Head, Wrenching Socket Alloy Steel Self Locking Screw. 250 Deg. F, 160 KSI FTU (Socket Head Cap Screws) (S/S By NASM21262 16 AUG 1982). Socket Cap Screws come in different types and sizes including: MS21295, MS16995, MS16996, MS16997, MS16998, MS24667, MS24671, MS24672, MS24673, MS24674, MS24677, MS24678, MS51975, NAS608, NAS609. MS21262D, MILITARY STANDARD, SCREWS, SELF LOCKING, 250 DEG. F, CYLINDRICAL HEAD HEXAGONAL WRENCHING SOCKET, ALLOY STEEL, 160 KSI FTU (SOCKET HEAD CAP SCREWS) (16 AUG 1982) [S/S BY NASM21262]
  

   

• MS21295

  MS21295 Cylindrical Head, Wrenching Socket Corrosion Resisting steel Self Locking Screw. 250 Deg. F, 80 KSI FTU (Socket Head Cap Screws) (S/S By NASM21295 20 FEB 1963). Socket Cap Screws come in different types and sizes including: MS21295, MS16995, MS16996, MS16997, MS16998, MS24667, MS24671, MS24672, MS24673, MS24674, MS24677, MS24678, MS51975, NAS608, NAS609. MS21295A, MILITARY STANDARD, SCREWS, SELF LOCKING, 250 DEG. F, CYLINDRICAL HEAD, HEXAGONAL WRENCHING SOCKET, CORROSION RESISTING STEEL, 80 KSI FTU (SOCKET HEAD CAP SCREWS) (20 FEB 1963) [S/S BY NASM21295].
  

   

• MS24667

  MS24667 Socket Head Cap Screw, Flat Countersunk, 82 Deg., Alooy Steel UNC-3A (S/S By NASM24667 30 JUN 1998). Socket Cap Screws come in different types and sizes including: MS21295, MS16995, MS16996, MS16997, MS16998, MS24667, MS24671, MS24672, MS24673, MS24674, MS24677, MS24678, MS51975, NAS608, NAS609. MS24667C (NOTICE 1), MILITARY STANDARD: SCREW, CAP, SOCKET HEAD, FLAT COUNTERSUNK, 82 DEG., ALLOY STEEL UNC-3A (30 JUN 1998) [S/S BY NASM24667]
  

   

• MS24672

  MS24672 Socket Head Cap Screw, Flat Countersunk, Corrosion resisting Steel, UNF-3A Inactive For New design after 03/27/61. Socket Cap Screws come in different types and sizes including: MS21295, MS16995, MS16996, MS16997, MS16998, MS24667, MS24671, MS24672, MS24673, MS24674, MS24677, MS24678, MS51975, NAS608, NAS609. MS24672 SCREW, CAP, SOCKET HEAD, FLAT COUNTERSUNK, CORROSION RESISTING STEEL, UNF-3A INACTIVE FOR NEW DESIGN AFTER 03/27/61
  

   

• MS24673

  MS24673 Hex Socket Head Capt Screw, Drilled Corrosion Cncl S/S By NASM24673. Socket Cap Screws come in different types and sizes including: MS21295, MS16995, MS16996, MS16997, MS16998, MS24667, MS24671, MS24672, MS24673, MS24674, MS24677, MS24678, MS51975, NAS608, NAS609. MS24673 SCREW, CAP SOCKETHEAD, HEXAGON, DRILLED CORROSION CNCL S/S BY NASM24673
  

   

• MS24674

  MS24674 Hex Socket Head Capt Screw, Drilled Corrosion Resisting Steel (UNC-3A) Cncl S/S By NASM24674. Socket Cap Screws come in different types and sizes including: MS21295, MS16995, MS16996, MS16997, MS16998, MS24667, MS24671, MS24672, MS24673, MS24674, MS24677, MS24678, MS51975, NAS608, NAS609. MS24673 SCREW, CAP SOCKETHEAD, HEXAGON, DRILLED CORROSION RESISTING STEEL (UNC-3A) CNCL S/S BY NASM24674
  

   

• MS24677

  MS24677 Hex Socket Head Cap Screw, Drilled Alloy Steel (UNC-3A) CNCL S/S By NASM24677. Socket Cap Screws come in different types and sizes including: MS21295, MS16995, MS16996, MS16997, MS16998, MS24667, MS24671, MS24672, MS24673, MS24674, MS24677, MS24678, MS51975, NAS608, NAS609. MS24677 SCREW, CAP, SOCKET HEAD, HEXAGON, DRILLED ALLOY STEEL (UNC-3A) CNCL S/S BY NASM24677
  

   

• MS24678

  MS24678 Hex Socket Head Cap Screw, Drilled Alloy Steel (UNF-3A) CNCL S/S By NASM24678. Socket Cap Screws come in different types and sizes including: MS21295, MS16995, MS16996, MS16997, MS16998, MS24667, MS24671, MS24672, MS24673, MS24674, MS24677, MS24678, MS51975, NAS608, NAS609. MS24677 SCREW, CAP, SOCKET HEAD, HEXAGON, DRILLED ALLOY STEEL (UNF-3A) CNCL S/S BY NASM24678.
  

   

• MS51975

  MS51975 Hex Socket Head Shoulder Screw, Alloy Steel, Cad Plated, UNC-3A (S/S By NASM51975 3 MAR 1995). Socket Cap Screws come in different types and sizes including: MS21295, MS16995, MS16996, MS16997, MS16998, MS24667, MS24671, MS24672, MS24673, MS24674, MS24677, MS24678, MS51975, NAS608, NAS609. MS51975E, MILITARY STANDARD, SCREW, SHOULDER - SOCKET HEAD, HEXAGON, ALLOY STEEL, CADMIUM PLATED, UNC-3A (3 MAR 1995) [S/S BY NASM51975]
  

   

• NAS608

  NAS608 Self Locking and Plain Socket Head Cap Screw, Inactive for Design See NAS1351 and NAS1352. Socket Cap Screws come in different types and sizes including: MS21295, MS16995, MS16996, MS16997, MS16998, MS24667, MS24671, MS24672, MS24673, MS24674, MS24677, MS24678, MS51975, NAS608, NAS609. NAS608 SCREW - SOCKET HEAD CAP PLAIN AND SELF LOCKING INACTIVE FOR DESIGN SEE NAS1351 AND 1352
  

   

• NAS609

  NAS609 Socket Head Cap Screw (Non-Preferred treaded) Inactive for Design, see NAS1351 and 1352. Socket Cap Screws come in different types and sizes including: MS21295, MS16995, MS16996, MS16997, MS16998, MS24667, MS24671, MS24672, MS24673, MS24674, MS24677, MS24678, MS51975, NAS608, NAS609. NAS609 SCREWS - SOCKET HEAD CAP (NON-PREFERRED TREADED) INACTIVE FOR DESIGN SEE NAS1351 AND 1352