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Thread Designations
100

A colorless, odorless gas produced by the incomplete combustion of fuels, including those from small gas engines.

Carbon Monoxide

100

A punch used to create an indentation for drilling

Center Punch

100

Which tool is used to grind and shape metal objects?

Bench Grinder

100

A thread type used in applications where vibration is not a considerable factor.

Unified National Coarse

100

What does the "M" in M-10 x 1.5 x 25 represent in the fastener identification?

Metric

200

Clothing and equipment worn to minimize exposure to hazards that could cause injuries or illnesses. This includes items such as safety goggles, gloves, face shields, respirators, and hearing protection.

Personal Protective Equipment

200

What is the purpose of a pin punch?

To drive pins out of holes

200

Locking pliers that can be adjusted to grip objects tightly.

Vise Grips

200

Used to seal and prevent leakage between engine parts.

Gaskets

200

What does the 3/4 indicate from the thread designation: 3/4-20 UNF-3A X 2?

3/4 inch thread diameter

300

A type of personal protective equipment designed to protect the wearer from inhaling harmful substances.

Respirator

300

A tool specifically designed for cutting metal and plastic

Hacksaw

300

What tool is used primarily to drill precise holes?

Drill Press

300

eat-treated, hardened alloy steel fasteners designed to secure rotating components, such as pulleys or gears.

Set Screws

300

How many threads per inch does the fastener 1/2-13 UNC-2A x 1 have?

13 threads per inch

400

A document that provides detailed information about a particular chemical, including its properties, handling instructions, potential hazards, and the type of personal protective equipment (PPE) required.

Safety Data Sheet

400

Which type of hammer is non-marring and used for delicate tasks?

Soft-Faced Hammer

400

Which tool is similar to a digital slide caliper but does not use electronic measurement?

Dial Caliper

400

A screw head type that is deeper than a round head, allowing for a greater drive depth and a more secure fit.

Fillister Head

400

In the fastener M-10 x 1.5 x 25, what does the "25" represent?

25 millimeters

500

A predetermined set of procedures to follow in case of an emergency.

Action Plan

500

What shape is an Allen Wrench?

Hexagonal

500

Which tool is used to measure length, depth, and internal and external diameters?

Vernier Caliper

500

The number of threads per inch (in U.S. measurements) or the distance between threads measured in millimeters (in Metric).

Thread Pitch

500

Identify this thread Designation: 1/2-13 UNC - 2A X 1

1/2 in Diameter

13 Threads per inch

Unified National Coarse

Class 2 fit

A - External Thread

1 inch long