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A strong pin, or contrivance, used to fasten or hold something in place.

Bolt

A strong pin, or contrivance, used to fasten or hold something in place.

"The bolt and magazine mechanism can be dismounted without removing the stock. The latter should never be done, except for making repairs, and then only by some selected and instructed men." — Moss, 1914

Bolt and magazine

"The bolt and magazine mechanism can be dismounted without removing the stock. The latter should never…

An illustration of the hexagonal bolt head showing measurements. The measurement of diameter, D, is used to calculate the dimensions. The diameter of the head and the nut, H, is 1 ½D ₌ ⅛, and the distance of T is half the diameter.

U.S. Standard Hexagonal Bolt Head

An illustration of the hexagonal bolt head showing measurements. The measurement of diameter, D, is…

"Parts shown are handle, A; sleeve, B; safety lock, C; cocking peice, D; safety lug, E; extractor, F; extractor collar, G; locking lugs, H; extractor tongue groove, I, and gas escape hole, J." — Moss, 1914

Bolt Mechanism

"Parts shown are handle, A; sleeve, B; safety lock, C; cocking peice, D; safety lug, E; extractor, F;…

"Place the cutoff at the center notch; cock the arm and turn the safety lock to a vertical position, raise the bolt handle and draw out the bolt." — Moss, 1914

Bolt mechanism dismounting

"Place the cutoff at the center notch; cock the arm and turn the safety lock to a vertical position,…

Carriage bolt is a fastener with a round head with a square head, and tightened by using a nut and wrench. The bolt is commonly used in furniture making.

Carriage Bolt

Carriage bolt is a fastener with a round head with a square head, and tightened by using a nut and wrench.…

A screw with a domed head and square section under the head.

Carriage Bolt

A screw with a domed head and square section under the head.

Expansion bolt is used to fasten lightweight objects. The bolt has an expansion jacket, where the mechanism expands when tighten.

Expansion Bolt

Expansion bolt is used to fasten lightweight objects. The bolt has an expansion jacket, where the mechanism…

A bolt that has an attachment that expands as the bolt is driven into a surface

Expansion Bolt

A bolt that has an attachment that expands as the bolt is driven into a surface

Eye bolt has a looped end with threads at the opposite end. The bolt is primarily used in attaching cables to objects.

Eye Bolt

Eye bolt has a looped end with threads at the opposite end. The bolt is primarily used in attaching…

Hanger bolt is a fastener used in wood working with two different sized threads and some have no center threads.

Hanger Bolt

Hanger bolt is a fastener used in wood working with two different sized threads and some have no center…

A screw used with nuts, driven into tapped holes.

Machine Bolt

A screw used with nuts, driven into tapped holes.

"Cutting pliers and cutting nippers have a pair of knife edges so arranged as to work exactly opposite to one another, the handles, on being tightly grasped, affording sufficient leverage for these edges to be forced to a short distance into the two opposite sides of a nail or wire, which, if of small diameter or of soft metal, can thus be cut asunder." — Encyclopedia Britannica, 1893

Cutting Pliers

"Cutting pliers and cutting nippers have a pair of knife edges so arranged as to work exactly opposite…

A fastener is a hardware device that mechanically joins or affixes two or more objects together. Fasteners can also be used to close a container such as a bag, a box, or an envelope; or they may involve keeping together the sides of an opening of flexible material, attaching a lid to a container, etc.

Fastening Device

A fastener is a hardware device that mechanically joins or affixes two or more objects together. Fasteners…

Inspecting bolt with length gage.

Length Gage

Inspecting bolt with length gage.

Wing nut is a fastener with a threaded hole used to keep objects in place. Wing nut can be loosen or tighten by hand.

Wing Nut

Wing nut is a fastener with a threaded hole used to keep objects in place. Wing nut can be loosen or…

"A set of stocks, dies, and taps for cutting threads on bolts and inside of nuts."—The Federal Digest, 1921

Screw Plate

"A set of stocks, dies, and taps for cutting threads on bolts and inside of nuts."—The Federal…

Cutaway view of a nut on a bolt showing the threads.

Screw and Nut Half Sectional View

Cutaway view of a nut on a bolt showing the threads.

Drive screw is a threaded fastener used in industrial application. The screw is designed to last long by having a strong and durable head.

Drive Screw

Drive screw is a threaded fastener used in industrial application. The screw is designed to last long…

A number of screws, all used in carriage-making and carpentry. "A, B, C, D, and E are special forms of wood-screws in common use." —Whitney, 1889

Collection of Screws Used in Carriage-Making and Carpentry

A number of screws, all used in carriage-making and carpentry. "A, B, C, D, and E are special forms…

"A double nut which has right-hand and left-hand threads for attaching the joint-ends of rods or tubes; a union. a, a1, rods or pipes to be joined, a having a right-hand screw and a1 a left-hand screw, to which screws the right and left sleeve-nut b is fitted." -Whitney, 1889

Sleeve Nut

"A double nut which has right-hand and left-hand threads for attaching the joint-ends of rods or tubes;…

A stock used to tighten and loosen bolts.

Stock

A stock used to tighten and loosen bolts.

Turnbuckle is a screw device to adjust the tension or length of ropes, cables, tie rods, and other tension system.

Turnbuckles

Turnbuckle is a screw device to adjust the tension or length of ropes, cables, tie rods, and other tension…