5/16" T Handles | McMaster-Carr

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	Tip Style Tip Style


Standard	Ball

	System of Measurement System of Measurement

Inch

	Overall Length Overall Length

	Size Size	Show

5/16"

	Size Size	Hide

	For Drive Style For Drive Style


Hex	External Square	External Hex

	Individual/Set Individual/Set

Individual

Set

	Grip Style Grip Style

	Cushion
	Ultra Grip
	Plain

	Number of Pieces Number of Pieces

	Container Type Container Type

Plastic Pouch

Plastic Stand

	Material Material

Steel

Stainless Steel

	Finish Finish

	Handle Material Handle Material

Plastic

Steel

	Maximum Access Angle Maximum Access Angle

20°

25°

	Color Color

	Black

	Driver Type Driver Type

Standard

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	Shaft Length Shaft Length

	Overall Shaft Width Overall Shaft Width

5/16"

3/8"

1/2"

	Wrench Style Wrench Style

	Socket

	Ratcheting or Nonratcheting Ratcheting or Nonratcheting

Nonratcheting

	Hex Key Size for Set Screw Hex Key Size for Set Screw

1/16"

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38 Products

T-Handle Keys

Hex

The long shaft reaches into tight spots to turn fasteners. With a plastic-covered handle that provides a good grip for your whole hand, these T-handle keys are more comfortable to hold than L-keys.

		Shaft
Drive Size	Overall Lg.	Lg.	Overall Wd.	Material	Finish	Handle Material		Each
Hex
5/16"	6"	4"	5/16"	Steel	Black Phosphate Coated	Plastic	0000000	000000
5/16"	9"	7"	5/16"	Steel	Black Phosphate Coated	Plastic	0000000	00000

T-Handle Key Sets

Hex

Sets include assorted keys with long shafts that reach into tight spots to turn fasteners. The plastic-covered handles provide a good grip for your whole hand and are more comfortable to hold than L-keys.

Hex
Number of Pieces	Includes	Material	Handle Material	Container Type		Each
10	3/32" Hex T-Handle Key (6" O'all Lg.) 7/64" Hex T-Handle Key (6" O'all Lg.) 1/8" Hex T-Handle Key (6" O'all Lg.) 9/64" Hex T-Handle Key (6" O'all Lg.) 5/32" Hex T-Handle Key (6" O'all Lg.) 3/16" Hex T-Handle Key (6" O'all Lg.) 7/32" Hex T-Handle Key (6" O'all Lg.) 1/4" Hex T-Handle Key (6" O'all Lg.) 5/16" Hex T-Handle Key (6" O'all Lg.) 3/8" Hex T-Handle Key (6" O'all Lg.)	Steel	Plastic	Plastic Stand	0000000	000000
10	3/32" Hex T-Handle Key (9" O'all Lg.) 7/64" Hex T-Handle Key (9" O'all Lg.) 1/8" Hex T-Handle Key (9" O'all Lg.) 9/64" Hex T-Handle Key (9" O'all Lg.) 5/32" Hex T-Handle Key (9" O'all Lg.) 3/16" Hex T-Handle Key (9" O'all Lg.) 7/32" Hex T-Handle Key (9" O'all Lg.) 1/4" Hex T-Handle Key (9" O'all Lg.) 5/16" Hex T-Handle Key (9" O'all Lg.) 3/8" Hex T-Handle Key (9" O'all Lg.)	Steel	Plastic	Plastic Stand	0000000	00000

Stubby T-Handle Keys

Hex

When working in tight spaces, these short keys fit where others can't. They have a plastic-covered handle for a comfortable grip.

For technical drawings and 3-D models, click on a part number.

		Shaft
Drive Size	Overall Lg.	Lg.	Overall Wd.	Material	Handle Material		Each
Hex
5/16"	4 1/8"	2"	5/16"	Black Phosphate-Coated Steel	Plastic	0000000	000000

Stubby T-Handle Key Sets

Hex

Sets include an assortment of short keys that fit in tight spaces where others can't. They have a plastic-covered handle for a comfortable grip.

For technical drawings and 3-D models, click on a part number.

Number of Pieces	Includes	Material	Handle Material	Container Type		Each
10	3/32" Hex T-Handle Key (4 1/8" O'all Lg.) 7/64" Hex T-Handle Key (4 1/8" O'all Lg.) 1/8" Hex T-Handle Key (4 1/8" O'all Lg.) 9/64" Hex T-Handle Key (4 1/8" O'all Lg.) 5/32" Hex T-Handle Key (4 1/8" O'all Lg.) 3/16" Hex T-Handle Key (4 1/8" O'all Lg.) 7/32" Hex T-Handle Key (4 1/8" O'all Lg.) 1/4" Hex T-Handle Key (4 1/8" O'all Lg.) 5/16" Hex T-Handle Key (4 1/8" O'all Lg.) 3/8" Hex T-Handle Key (4 1/8" O'all Lg.)	Black Phosphate-Coated Steel	Plastic	Plastic Stand	0000000	000000

Ball-End T-Handle Keys

Hex

When a standard-tip key can't make good contact with the recess, a ball end allows angled entry to turn screws in hard-to-reach places. These keys have a plastic-covered handle for a comfortable grip.

For technical drawings and 3-D models, click on a part number.

		Shaft
Drive Size	Overall Lg.	Lg.	Overall Wd.	Max. Access Angle	Material	Finish	Handle Material		Each
Hex
5/16"	11 1/2"	9 1/4"	5/16"	25°	Steel	Black Phosphate Coated	Plastic	00000000	00000

Ball-End T-Handle Key Sets

Hex

These assorted keys have a ball end that allows angled entry to make good contact with the screw recess when standard-tip keys can’t. They have a plastic-covered handle for a comfortable grip.

For technical drawings and 3-D models, click on a part number.

Hex
Number of Pieces	Includes	Max. Access Angle	Material	Finish	Handle Material	Container Type		Each
6	5/32" Hex T-Handle Key (9 1/4" O'all Lg.) 3/16" Hex T-Handle Key (9 3/4" O'all Lg.) 7/32" Hex T-Handle Key (10 1/4" O'all Lg.) 1/4" Hex T-Handle Key (10 3/4" O'all Lg.) 5/16" Hex T-Handle Key (11 1/2" O'all Lg.) 3/8" Hex T-Handle Key (11 3/4" O'all Lg.)	25°	Steel	Black Phosphate Coated	Plastic	Plastic Pouch	00000000	000000

Ultra-Grip T-Handle Keys

Hex

The textured grip provides comfort, slip resistance, and maximum torque. These keys have a long shaft for reaching into tight spots to turn fasteners.

For technical drawings and 3-D models, click on a part number.

		Shaft
Drive Size	Overall Lg.	Lg.	Overall Wd.	Material	Finish	Handle Material		Each
Hex
5/16"	7"	6"	5/16"	Steel	Black Oxide	Plastic	0000000	00000
5/16"	10"	9"	5/16"	Steel	Black Oxide	Plastic	0000000	0000

Ultra-Grip T-Handle Key Sets

Hex

These assorted keys have a textured grip that provides comfort, slip resistance, and maximum torque. The long shaft reaches into tight spots to turn fasteners.

For technical drawings and 3-D models, click on a part number.

Number of Pieces	Includes	Material	Finish	Handle Material	Container Type		Each
11	5/64" Hex T-Handle Key (6 5/8" O'all Lg.) 3/32" Hex T-Handle Key (6 5/8" O'all Lg.) 7/64" Hex T-Handle Key (6 5/8" O'all Lg.) 1/8" Hex T-Handle Key (6 5/8" O'all Lg.) 9/64" Hex T-Handle Key (6 5/8" O'all Lg.) 5/32" Hex T-Handle Key (6 5/8" O'all Lg.) 3/16" Hex T-Handle Key (6 13/16" O'all Lg.) 7/32" Hex T-Handle Key (6 13/16" O'all Lg.) 1/4" Hex T-Handle Key (6 13/16" O'all Lg.) 5/16" Hex T-Handle Key (7" O'all Lg.) 3/8" Hex T-Handle Key (7" O'all Lg.)	Steel	Black Oxide	Plastic	Plastic Pouch	0000000	000000
11	5/64" Hex T-Handle Key (9 3/4" O'all Lg.) 3/32" Hex T-Handle Key (9 3/4" O'all Lg.) 7/64" Hex T-Handle Key (9 3/4" O'all Lg.) 1/8" Hex T-Handle Key (9 3/4" O'all Lg.) 9/64" Hex T-Handle Key (9 3/4" O'all Lg.) 5/32" Hex T-Handle Key (9 3/4" O'all Lg.) 3/16" Hex T-Handle Key (9 3/4" O'all Lg.) 7/32" Hex T-Handle Key (9 3/4" O'all Lg.) 1/4" Hex T-Handle Key (9 3/4" O'all Lg.) 5/16" Hex T-Handle Key (10" O'all Lg.) 3/8" Hex T-Handle Key (10" O'all Lg.)	Steel	Black Oxide	Plastic	Plastic Pouch	0000000	00000

Ball-End Ultra-Grip T-Handle Keys

Hex

When a standard-tip key can't make good contact with the recess, a ball end allows angled entry to turn screws in hard-to-reach places. These keys have a textured grip that provides comfort, slip resistance, and maximum torque.

For technical drawings and 3-D models, click on a part number.

		Shaft
Drive Size	Overall Lg.	Lg.	Overall Wd.	Max. Access Angle	Material	Finish	Handle Material		Each
Hex
5/16"	10"	7 13/16"	5/16"	20°	Steel	Black Oxide	Plastic	00000000	000000

Ball-End Ultra-Grip T-Handle Key Sets

Hex

These assorted keys have a ball end that allows angled entry to make good contact with the screw recess when standard-tip keys can’t. The textured grip provides comfort, slip resistance, and maximum torque.

For technical drawings and 3-D models, click on a part number.

Number of Pieces	Includes	Max. Access Angle	Material	Finish	Handle Material	Container Type		Each
11	5/64" Hex T-Handle Key (9 3/4" O'all Lg.) 3/32" Hex T-Handle Key (9 3/4" O'all Lg.) 7/64" Hex T-Handle Key (9 3/4" O'all Lg.) 1/8" Hex T-Handle Key (9 3/4" O'all Lg.) 9/64" Hex T-Handle Key (9 3/4" O'all Lg.) 5/32" Hex T-Handle Key (9 3/4" O'all Lg.) 3/16" Hex T-Handle Key (9 3/4" O'all Lg.) 7/32" Hex T-Handle Key (9 3/4" O'all Lg.) 1/4" Hex T-Handle Key (9 3/4" O'all Lg.) 5/16" Hex T-Handle Key (10" O'all Lg.) 3/8" Hex T-Handle Key (10" O'all Lg.)	20°	Steel	Black Oxide	Plastic	Plastic Pouch	00000000	000000

Looped T-Handle Keys

Plain Grip

Cushion Grip

Hex

With a simple loop handle, these keys are the economical choice. They have a long shaft for reaching into tight spots and the T-handle provides a good grip for your whole hand when turning fasteners.

Cushion-grip keys have a plastic-covered handle for comfort.

For technical drawings and 3-D models, click on a part number.

		Shaft
Drive Size	Overall Lg.	Lg.	Overall Wd.	Material	Finish	Handle Material		Each
Hex
Plain Grip
5/16"	7 5/16"	6"	5/16"	Steel	Black Oxide	Steel	0000000	00000
5/16"	10 1/4"	9"	5/16"	Steel	Black Oxide	Steel	0000000	0000
Cushion Grip
5/16"	7 7/16"	4 13/16"	5/16"	Steel	Black Oxide	Plastic	0000000	0000
5/16"	10 1/2"	7 13/16"	5/16"	Steel	Black Oxide	Plastic	0000000	0000

Looped T-Handle Key Sets

Plain Grip

Cushion

Hex

The economical choice, these sets include an assortment of keys with a simple loop handle. The long shaft reaches into tight spots and the T-handle provides a good grip for your whole hand when turning fasteners.

Cushion-grip keys have a plastic-covered handle for comfort.

Plain Grip
Number of Pieces	Includes	Material	Finish	Handle Material	Container Type		Each
10	3/32" Hex T-Handle Key (6 5/8" O'all Lg.) 7/64" Hex T-Handle Key (6 5/8" O'all Lg.) 1/8" Hex T-Handle Key (6 5/8" O'all Lg.) 9/64" Hex T-Handle Key (6 5/8" O'all Lg.) 5/32" Hex T-Handle Key (6 3/4" O'all Lg.) 3/16" Hex T-Handle Key (7" O'all Lg.) 7/32" Hex T-Handle Key (7" O'all Lg.) 1/4" Hex T-Handle Key (7 1/8" O'all Lg.) 5/16" Hex T-Handle Key (7 5/16" O'all Lg.) 3/8" Hex T-Handle Key (7 7/16" O'all Lg.)	Steel	Black Oxide	Steel	Plastic Pouch	0000000	000000
10	3/32" Hex T-Handle Key (9 3/4" O'all Lg.) 7/64" Hex T-Handle Key (9 3/4" O'all Lg.) 1/8" Hex T-Handle Key (9 3/4" O'all Lg.) 9/64" Hex T-Handle Key (9 3/4" O'all Lg.) 5/32" Hex T-Handle Key (9 3/4" O'all Lg.) 3/16" Hex T-Handle Key (10" O'all Lg.) 7/32" Hex T-Handle Key (10" O'all Lg.) 1/4" Hex T-Handle Key (10 1/4" O'all Lg.) 5/16" Hex T-Handle Key (10 1/4" O'all Lg.) 3/8" Hex T-Handle Key (10 1/2" O'all Lg.)	Steel	Black Oxide	Steel	Plastic Pouch	0000000	00000
Cushion Grip
10	3/32" Hex T-Handle Key (6 3/4" O'all Lg.) 7/64" Hex T-Handle Key (6 3/4" O'all Lg.) 1/8" Hex T-Handle Key (6 3/4" O'all Lg.) 9/64" Hex T-Handle Key (6 3/4" O'all Lg.) 5/32" Hex T-Handle Key (6 13/16" O'all Lg.) 3/16" Hex T-Handle Key (7 1/8" O'all Lg.) 7/32" Hex T-Handle Key (7 1/8" O'all Lg.) 1/4" Hex T-Handle Key (7 1/4" O'all Lg.) 5/16" Hex T-Handle Key (7 7/16" O'all Lg.) 3/8" Hex T-Handle Key (7 1/2" O'all Lg.)	Steel	Black Oxide	Plastic	Plastic Pouch	0000000	00000
10	3/32" Hex T-Handle Key (9 3/4" O'all Lg.) 7/64" Hex T-Handle Key (9 3/4" O'all Lg.) 1/8" Hex T-Handle Key (9 3/4" O'all Lg.) 9/64" Hex T-Handle Key (9 3/4" O'all Lg.) 5/32" Hex T-Handle Key (9 3/4" O'all Lg.) 3/16" Hex T-Handle Key (10 1/4" O'all Lg.) 7/32" Hex T-Handle Key (10 1/4" O'all Lg.) 1/4" Hex T-Handle Key (10 1/4" O'all Lg.) 5/16" Hex T-Handle Key (10 1/2" O'all Lg.) 3/8" Hex T-Handle Key (10 1/2" O'all Lg.)	Steel	Black Oxide	Plastic	Plastic Pouch	0000000	00000

Ball-End Two-Tip T-Handle Keys

Hex

The long shaft has a ball end for angled entry to turn screws in hard-to-reach areas. The short shaft provides additional torque. These keys have a textured ultra grip for comfort and slip resistance.

For technical drawings and 3-D models, click on a part number.

	Length
Drive Size	Long Shaft	Short Shaft	Overall	Overall Shaft Wd.	Max. Access Angle	Material	Handle Material		Each
Hex
5/16"	7 13/16"	5/8"	9 1/4"	3/8"	20°	Chrome-Plated Steel	Plastic	0000000	000000

Ball-End Two-Tip T-Handle Key Sets

Hex

These sets include an assortment of keys with a ball end on the long shaft, which allows angled entry to turn screws in hard-to-reach areas. The short shaft provides additional torque. Keys have a textured ultra grip for comfort and slip resistance.

For technical drawings and 3-D models, click on a part number.

Number of Pieces	Includes	Max. Access Angle	Material	Handle Material		Each
10	3/32" Hex T-Handle Key (6 7/8" O'all Lg.) 7/64" Hex T-Handle Key (6 7/8" O'all Lg.) 1/8" Hex T-Handle Key (6 7/8" O'all Lg.) 9/64" Hex T-Handle Key (6 7/8" O'all Lg.) 5/32" Hex T-Handle Key (6 7/8" O'all Lg.) 3/16" Hex T-Handle Key (7 1/8" O'all Lg.) 7/32" Hex T-Handle Key (7 1/8" O'all Lg.) 1/4" Hex T-Handle Key (7 1/8" O'all Lg.) 5/16" Hex T-Handle Key (9 1/4" O'all Lg.) 3/8" Hex T-Handle Key (9 1/4" O'all Lg.)	20°	Chrome-Plated Steel	Plastic	0000000	0000000

Deep-Reach T-Handle Keys with Replaceable Tips

Hex

The extra-long shaft provides access to fasteners in deep recesses. To change tips, use a hex key (not included) to loosen the set screw. These tools have a plastic-covered handle for comfort.

For technical drawings and 3-D models, click on a part number.

T-Handle Keys
		Shaft							Replacement Tips
Drive Size	Overall Lg.	Lg.	Overall Wd.	Hex Key Size for Set Screw	Material	Handle Material		Each		Each
Hex
5/16"	13"	11 1/2"	1/2"	1/16"	Zinc-Plated Steel	Plastic	0000000	000000	0000000	00000
5/16"	19"	17 1/2"	1/2"	1/16"	Zinc-Plated Steel	Plastic	0000000	00000	0000000	0000
5/16"	25"	23 1/2"	1/2"	1/16"	Zinc-Plated Steel	Plastic	0000000	00000	0000000	0000

Screw-Holding T-Handle Keys

Hex

The ball-end tip has a retaining ring that grips inside the recess to hold screws in place and allows angled entry to turn fasteners in hard-to-reach areas. These keys have a plastic-covered handle for comfort.

For technical drawings and 3-D models, click on a part number.

		Shaft
Drive Size	Overall Lg.	Lg.	Overall Wd.	Max. Access Angle	Screw-Holding Mechanism	Material	Handle Material		Each
Hex
5/16"	9 1/4"	7 7/8"	3/8"	20°	Retaining Ring	Chrome-Plated Steel	Plastic	0000000	00000

Screw-Holding T-Handle Key Sets

Hex

These assorted keys have a ball-end tip with a retaining ring that grips inside the recess to hold screws in place and allows angled entry to turn fasteners in hard-to-reach areas. They have a plastic-covered handle for comfort.

For technical drawings and 3-D models, click on a part number.

Number of Pieces	Includes	Max. Access Angle	Screw-Holding Mechanism	Material	Handle Material		Each
6	5/32" Hex T-Handle Key (6 15/16" O'all Lg.) 3/16" Hex T-Handle Key (7 1/4" O'all Lg.) 7/32" Hex T-Handle Key (7 1/4" O'all Lg.) 1/4" Hex T-Handle Key (7 1/4" O'all Lg.) 5/16" Hex T-Handle Key (9 1/4" O'all Lg.) 3/8" Hex T-Handle Key (9 1/4" O'all Lg.)	20°	Retaining Ring	Chrome-Plated Steel	Plastic	000000	000000

T-Handle Keys for Stainless Steel Screws

Hex

Protect your stainless steel screws by using a stainless steel key. If steel flakes off a standard tool and into the recess, it can lead to rust and contamination. These keys eliminate that risk. The plastic-covered handle provides a good grip for your whole hand and is more comfortable to hold than an L-key.

For technical drawings and 3-D models, click on a part number.

		Shaft
Drive Size	Overall Lg.	Lg.	Overall Wd.	Material	Handle Material		Each
Hex
5/16"	6"	4 1/2"	3/8"	Stainless Steel	Plastic	00000000	000000
5/16"	12"	10 1/2"	3/8"	Stainless Steel	Plastic	00000000	00000

Two-Tip T-Handle Keys for Stainless Steel Screws

Hex

The long shaft provides more reach and the short shaft more torque. Protect your stainless steel screws by using a stainless steel key. If steel flakes off a standard tool and into the recess, it can lead to rust and contamination. These keys eliminate that risk. The handle is covered in plastic for comfort.

For technical drawings and 3-D models, click on a part number.

	Length
Drive Size	Long Shaft	Short Shaft	Overall	Overall Shaft Wd.	Material	Handle Material		Each
Hex
5/16"	7 1/8"	1 7/16"	10"	3/8"	Stainless Steel	Plastic	0000000	000000

Two-Tip T-Handle Key Sets for Stainless Steel Screws

Hex

Sets include an assortment of stainless steel keys, which protect stainless steel screws. If steel flakes off a standard tool and into the recess, it can lead to rust and contamination. These keys eliminate that risk. They have a long shaft that provides more reach and a short shaft for more torque. The handle is covered in plastic for comfort.

For technical drawings and 3-D models, click on a part number.

Number of Pieces	Includes	Drive Size	Material	Handle Material		Each
7	3/32" Hex T-Handle Key (6 1/16" O'all Lg.) 1/8" Hex T-Handle Key (7 1/16" O'all Lg.) 5/32" Hex T-Handle Key (7 7/8" O'all Lg.) 3/16" Hex T-Handle Key (7 7/8" O'all Lg.) 7/32" Hex T-Handle Key (8 3/4" O'all Lg.) 1/4" Hex T-Handle Key (9 1/4" O'all Lg.) 5/16" Hex T-Handle Key (10 1/4" O'all Lg.)	3/32", 1/8", 5/32", 3/16", 7/32", 1/4", 5/16"	Stainless Steel	Plastic	000000	0000000

Electrical-Insulating T-Handle Keys

Hex

An insulated handle and shaft protect against shock from accidental contact with live electrical circuits. These keys are tested to 1,000 volts to meet IEC 60900 and ASTM F1505-01. They have a long shaft that reaches into tight spots to turn fasteners.

For technical drawings and 3-D models, click on a part number.

		Shaft
Drive Size	Overall Lg.	Lg.	Overall Wd.	Material	Handle Material	Specifications Met		Each
Hex
5/16"	7"	6"	1/2"	Plastic-Coated Steel	Plastic	IEC 60900, ASTM F1505	0000000	000000

Electrical-Insulating T-Handle Key Sets

Hex

The assorted keys in these sets have an insulated handle and shaft that protect against shock from accidental contact with live electrical circuits. These tools are tested to 1,000 volts to meet IEC 60900 and ASTM F1505-01. They have a long shaft that reaches into tight spots to turn fasteners.

For technical drawings and 3-D models, click on a part number.

Number of Pieces	Includes	Material	Handle Material	Specifications Met		Each
6	5/32" Hex T-Handle Key (7" O'all Lg.) 3/16" Hex T-Handle Key (7" O'all Lg.) 7/32" Hex T-Handle Key (7" O'all Lg.) 1/4" Hex T-Handle Key (7" O'all Lg.) 5/16" Hex T-Handle Key (7" O'all Lg.) 3/8" Hex T-Handle Key (7" O'all Lg.)	Plastic-Coated Steel	Plastic	IEC 60900, ASTM F1505	0000000	000000

T-Handle Socket Wrenches

4-Point

6-Point

4-Point

6-Point

4-Point
Drive Size	Overall Lg.	Material	Finish	Specifications Met		Each
5/16"	4 1/2"	Steel	Black Oxide	ASME B107.100	0000000	000000
6-Point
5/16"	4 1/4"	Steel	Black Oxide	ASME B107.100	0000000	00000