Bolts from United Kingdom (UK)

Question 1

What is Federal Supply Class 5306?

Accepted Answer

FSC 5306 is the Federal Supply Class (formally known as NATO Supply Classification Class NSC 5306) in the USA for supply items codified in the category of Bolts.

Question 2

What is NATO Supply Classification Class 5306?

Accepted Answer

NSC 5306 is the NATO Supply Classification Class (also known as Federal Supply Class FSC 5306 in the USA) for supply items codified in the category of Bolts.

Question 3

Which Federal Supply Group is FSC 5306 in?

Accepted Answer

FSC 5306 is in Federal Supply Group (FSG) 53 which contains Hardware and Abrasives.

Question 4

Which NATO Supply Classification Group is NSC 5306 in?

Accepted Answer

NSC 5306is in NATO Supply Classification Group (NSG) 53 which contains Hardware and Abrasives.

Question 5

What is a Toggle Bolt?

Accepted Answer

A Toggle Bolt (BOLT,TOGGLE) is an externally threaded fastener whose threaded portion is of one nominal diameter having a wing or wings mounted on the bolt head or on a trunnion nut. The wing or wings upset when the toggle bolt is inserted in a constricted passage in a hollow wall and when the bolt is tightened, the wing or wings assume a transverse or athwart position. It is used for securely holding fixtures or devices to hollow walls.

Question 6

What is a Ring Bolt?

Accepted Answer

A Ring Bolt (BOLT,RING) is a BOLT, EYE having a nonremovable ring assembled in the eye.

Question 7

What is a Bolt Blank?

Accepted Answer

A Bolt Blank is a cylindrical device having a head, eye or hook; similar to a BOLT, MACHINE; BOLT, EYE or BOLT, HOOK, and the like, but without threads, and normally intended for a subsequent threading operation.

Question 8

What is a Machine Bolt?

Accepted Answer

A Machine Bolt (BOLT,MACHINE) is an externally threaded fastener designed for insertion through holes in assembled parts and normally intended to be tightened or released by torquing a nut.  The threaded and unthreaded portions are both of one nominal diameter of 0.190 inch (5 mm) or larger. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers.  A locking feature may be incorporated in the design of the head or threads.  Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards.  For items having a grip length portion machined to a tolerance of 0.0015 inch (0.038 mm) or less, BOLT, SHEAR. See also SCREW, CAP, HEXAGON HEAD and SCREW, MACHINE.

Question 9

What is a Sliding Handle Bolt?

Accepted Answer

A Sliding Handle Bolt (BOLT,SLIDING HANDLE) is an externally threaded fastener whose threaded and unthreaded portions are of one nominal diameter, No. 10 (0.190 IN.) (5 mm) or larger. The head is usually spherical in shape, all of which is of greater diameter than the threaded and unthreaded portions, and has a nonremovable sliding handle used to manually rotate the item.

Question 10

What is an Eye Bolt?

Accepted Answer

An Eye Bolt (BOLT,EYE) is an externally threaded device whose threaded portion is of one nominal diameter, without a head, but with the unthreaded end either bent more than 225 degrees (3.925 radians) or cast, forged, or punched to resemble an eye. See also BOLT, HOOK. Excludes CONNECTOR, ROD END.

Question 11

What is a Shoulder Bolt?

Accepted Answer

A Shoulder Bolt (BOLT,SHOULDER) is an externally threaded fastener whose threaded portion is of one nominal diameter, No. 10 (0.190 IN.) (5 mm) or larger. It has a round unthreaded neck or shank all or part of which is of greater diameter than the threaded portion. The head is not designed to be held or driven with an inserted drivers. A locking feature may be incorporated in the design of the head or threads. For items with a thread diameter smaller than No. 10 (0.190 IN.) (5 mm) and those items with an inserted drive head, use SCREW, SHOULDER. For items which are No. 10 (0.190 IN.) (5 mm) or larger in size and are both shouldered and have an externally relieved body, use BOLT, EXTERNALLY RELIEVED BODY. Excludes THUMBSCREW.

Question 12

What is an Assembled Washer Bolt?

Accepted Answer

An Assembled Washer Bolt (BOLT,ASSEMBLED WASHER) is a BOLT, MACHINE on which has been assembled one or more nonremovable washers. See also SCREW, ASSEMBLED WASHER.

Question 13

What is a Clevis Bolt?

Accepted Answer

A Clevis Bolt (BOLT,CLEVIS) is an externally threaded fastener whose threaded and unthreaded portions are of one nominal diameter and are separated by a narrow circumferential groove. The head is designed to be held or driven with an inserted driver. Excludes BOLT, SHEAR.

Question 14

What is a Hook Bolt?

Accepted Answer

A Hook Bolt (BOLT,HOOK) is an externally threaded device whose threaded portion is of nominal diameter, without a head but with the unthreaded end bent not over 225 degrees (3.925 radians). See also BOLT, EYE and BOLT, U.

Question 15

What is an U Bolt?

Accepted Answer

An U Bolt (BOLT,U) is an externally threaded fastener bent approximately 180 degrees (3.141 radians) in the shape of the letter U and with both ends threaded.

Question 16

What is an Internal Wrenching Bolt?

Accepted Answer

An Internal Wrenching Bolt (BOLT,INTERNAL WRENCHING) is an externally threaded fastener whose threaded portion is of one nominal diameter, No. 10 (0.190 IN.) (5 mm) or larger. It is designed with an internal socket or internal multiple spline for use with an internal driver. The head is beveled (conical) or cylindrical in shape. Items with cylindrical shaped heads must have an externally relieved body. A locking feature may be incorporated in the design of the head or threads. See also SCREW, CAP, SOCKET HEAD. Excludes SETSCREW; SCREW, SHOULDER; BOLT, SHOULDER; SCREW, EXTERNALLY RELIEVED BODY; BOLT, EXTERNALLY RELIEVED BODY; and SCREW, MACHINE.

Question 17

What is a Tee Head Bolt?

Accepted Answer

A Tee Head Bolt (BOLT,TEE HEAD) is an externally threaded fastener whose threaded portion is of one nominal diameter and with a head specially designed to fit in a slot and hold against turning.

Question 18

What is an Externally Relieved Body Bolt?

Accepted Answer

An Externally Relieved Body Bolt (BOLT,EXTERNALLY RELIEVED BODY) is an externally threaded fastener whose threaded portion is of one nominal diameter, and whose unthreaded portion has been machined or ground in one or more places or over its entire length to a maximum diameter less than the minimum pitch diameter of the thread (excludes undercuts for thread relief). It is No. 10 (0.190 IN.) (5 mm) or larger in size and has a head which is not designed to be held or driven with an inserted driver or designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Excludes BOLT, INTERNAL WRENCHING and THUMBSCREW. See also SCREW, EXTERNALLY RELIEVED BODY.

Question 19

What is an Internally Relieved Body Bolt?

Accepted Answer

An Internally Relieved Body Bolt (BOLT,INTERNALLY RELIEVED BODY) is an externally threaded fastener whose external threaded portion is of one nominal diameter. It has a concentric hole along the longitudinal centerline which may extend a part or the full length of the bolt. The concentric hole along the centerline may be counterbored and/or internally threaded at the head end or the bolt end. The head is designed to be held or driven by an external and/or internal driver. For items having a hole(s) perpendicular to the axis which meet the concentric hole along the longitudinal centerline, see BOLT, FLUID PASSAGE.

Question 20

What is a Shear Bolt?

Accepted Answer

A Shear Bolt (BOLT,SHEAR) is a high strength, 160,000 pounds per square inch (1100 megapascals) minimum tensile strength externally threaded fastener designed for use in applications involving great shear stress. The head is designed to accommodate an external wrench or driver. The head is not designed to be held or driven with an inserted driver, nor is it designed for rotation by the thumb and fingers. The unthreaded portion is of specific grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001) of an inch (0.025 mm) or less of a specific diameter for items one inch (25 mm) or less in diameter. Items over one inch (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015) of an inch (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001) of an inch (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the Screw Thread Standards, FED STD H28 and/or other nationally recognized standards. A locking feature may be incorporated in the design of the head or threads. See BOLT, MACHINE and BOLT, CLEVIS.

Question 21

What is a Square Neck Bolt?

Accepted Answer

A Square Neck Bolt (BOLT,SQUARE NECK) is a headed externally threaded fastener whose threaded portion is of one nominal diameter, with a square neck directly beneath the head.

Question 22

What is a Ribbed Neck Bolt?

Accepted Answer

A Ribbed Neck Bolt (BOLT,RIBBED NECK) is a headed externally threaded fastener whose threaded portion is of one nominal diameter with a series of longitudinal ribs, splines or serrations on all or part of the unthreaded portion. See also BOLT, RIBBED SHOULDER.

Question 23

What is a Threaded End Rod?

Accepted Answer

A Threaded End Rod (ROD,THREADED END) is a headless cylindrical shaped metal item exceeding 12 inches (304.8 mm) in length and externally threaded on one or both ends. The unthreaded portion shall be of one diameter. Excludes items with tapered threads. See also STUD (as modified) and PIN, STRAIGHT, THREADED.

Question 24

What is a Continuous Thread Rod?

Accepted Answer

A Continuous Thread Rod (ROD,CONTINUOUS THREAD) is a headless fastener exceeding 12 inches (304.8 mm) in length having an external thread of one nominal diameter running from end to end. See also STUD, CONTINUOUS THREAD.

Question 25

What is a Ribbed Shoulder Bolt?

Accepted Answer

A Ribbed Shoulder Bolt (BOLT,RIBBED SHOULDER) is an externally threaded fastener whose threaded portion is of one nominal diameter. It has a series of longitudinal ribs, splines or serrations on all or a part of the shoulder. The minor diameter of the ribs must be greater than the major diameter of the threads. See also BOLT, RIBBED NECK.

Question 26

What is an Eccentric Head Bolt?

Accepted Answer

An Eccentric Head Bolt (BOLT,ECCENTRIC HEAD) is an externally threaded fastener the head of which is usually flat with a periphery not concentric to the bolt shank. The head is not designed for wrenching. It may have a drive feature located at the threaded end, which can be used to rotate the screw and eccentric head into a locking position to secure a flanged or groove component.

Question 27

What is a Close Tolerance Bolt?

Accepted Answer

A Close Tolerance Bolt (BOLT,CLOSE TOLERANCE) is an externally threaded fastener whose unthreaded portion is of a specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001) of an inch (0.025 mm) or less of a specific diameter for items one inch (25 mm) or less in diameter. Items over one inch (25 mm) in diameter shall have a tolerance of fifteen ten-thousandths (0.0015) of an inch (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001) of an inch (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the Screw Thread Standards, FED STD H28 and/or other nationally recognized standards. The head is not designed to be held or driven with an inserted driver, nor is it designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. For items having close tolerance, and fabricated from material having 160,000 pounds per square inch (1100 megapascals) minimum tensile strength, see BOLT, SHEAR. For items fabricated from material having less than 160,000 pounds per square inch (1100 megapascals) minimum tensile strength and not having a close tolerance, see BOLT, MACHINE.

Question 28

What is a Boiler Patch Bolt?

Accepted Answer

A Boiler Patch Bolt (BOLT,BOILER PATCH) is an externally threaded fastener whose threaded portion is of one nominal diameter, without machined (or equivalent) surfaces, having a countersunk head surmounted by a square or hexagonal head to facilitate installation, after which the square or hexagonal head is removed. (Converted from AEUSA to General Use on 12152020)

Bolts - United Kingdom (UK)

Federal Supply Class (FSC): 5306

NATO Supply Classification Class (NSC): 5306

Federal Supply Group (FSG): 53 Hardware and Abrasives

NATO Supply Classification Group (NSG): 53 Hardware and Abrasives

Items Managed by United Kingdom (UK) - NCB is 99

Page 11 of 153

NSN Format for Bolts
Codified by United Kingdom

Frequently Asked Questions(FAQ) for Federal Supply Class 5306

Supply Items Included in Federal Supply Class 5306

Stock Items From Supply Class 5306 Page 11 of 153