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Screw - 4-40, Phillips, Pan Head, Machine, Zinc

Name: Screw - 4-40, Phillips, Pan Head, Machine, Zinc
SKU: S-HS440-X
Price: 0.50 USD
Availability: InStock

Pictured: 1/4"

Pictured: 3/8"

Pictured: 1/2"

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Phillips panhead machine screw, 4-40, zinc. Designed to go through a hole or nut that is pre-tapped to form a mating thread for the screw. Has a general purpose bearing area and can be substituted in most applications for round, truss, or binding heads. Phillips drive is the most common drive used and is designed to "camout" when the screw reaches optimum tightness, thus preventing damage to the screw head.

Diameter/TPI	SKU
4-40	S-HS440-X
6-32	S-HS632-X
8-32	S-HS832-X
10-32	S-HS1032-X

SKU:

S-HS440-X

Item ID:

004226

Size:

Imperial

Type:

Screws, Screws & Hardware, Hardware

Accessory Items:

Part Numbers
Length	Our Part Number	UPC/EAN
1/2"	S-HS440-12	609722160612
1/4"	S-HS440-14	609722160629
3/8"	S-HS440-38	609722160636

Measurements by Type
Measurements by Item

Product Measurements by Type
Item Length	1/2" version	S-HS440-12	0.5 in.
	1/4" version	S-HS440-14	0.25 in.
	3/8" version	S-HS440-38	0.375 in.
U.S. Screw Number		4
U.S. Thread Major Diameter		0.112 in.
U.S. Thread Pitch		40 tpi.

Packaging Information
Packaging Dimensions	1/2" version	S-HS440-12	2.995 in. × 3.071 in. × 0.235 in.
	1/4" version	S-HS440-14	3.033 in. × 2.993 in. × 0.191 in.
	3/8" version	S-HS440-38	3.107 in. × 2.962 in. × 0.216 in.
Weight (Packaging)	1/2" version	S-HS440-12	0.0085 lbs.
	1/4" version	S-HS440-14	0.0064 lbs.
	3/8" version	S-HS440-38	0.0075 lbs.

Product Measurements by Item
S-HS440-12 - 1/2" version	Item Length	0.5 in.
	U.S. Screw Number	4
	U.S. Thread Major Diameter	0.112 in.
	U.S. Thread Pitch	40 tpi.
S-HS440-14 - 1/4" version	Item Length	0.25 in.
	U.S. Screw Number	4
	U.S. Thread Major Diameter	0.112 in.
	U.S. Thread Pitch	40 tpi.
S-HS440-38 - 3/8" version	Item Length	0.375 in.
	U.S. Screw Number	4
	U.S. Thread Major Diameter	0.112 in.
	U.S. Thread Pitch	40 tpi.

My Project Lists

Questions and Answers

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2 answers I am replaceing all the tube sockets on my 81 JMP MKII 2204 head. Will these work with the right nuts?

Asked by Anonymous on March 22nd, 2019.

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BradWbr

March 28th, 2019

Staff Member

It is possible, you will want to verify the diameter of the holes in the chassis as well as compare the threading to ensure proper fit.

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Anonymous

October 22nd, 2022

Two different sizes are required 4-40 for the small tubes & 6-32 for the power tubes. I prefer to use stainless hardware but zinc plate was more commonly used. A lot of the Marshall sockets were usually riveted in at the factory. They used a pneumatic "Cherry Burl" riveting gun or something like it only local to The UK. Vaco Klein used to sell a special tool for cutting those old rivets off. Cherry Burl guns are for mass production and they are expensive. That would make the socket mounting hardware look 100% stock.