MS51957-20B

Military Standard Machine Screw

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Description:

length: 7/8", thread: 4-40, pan head, black oxide coating, corrosion resistant steel, coarse thread, MS51957 series screw

* Manufacturer certifications are shipped with your order FREE of charge

Add to Cart Up to qty 1400 ships same day if ordered before 4pm EST

MS51957-20B Price:	buy now $0.25 Each
Quantity: Pre-packaged bag qty: 100 ea
* Sold in increments of 100

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MS51957-20B Datasheet Features and Specification

Thread Class:

Thread Direction:

Right-hand

Thread Length:

0.794 inches minimum and 0.875 inches maximum

Fastener Length:

0.844 inches minimum and 0.875 inches maximum

Head Style:

Pan

Head Diameter:

0.205 inches minimum and 0.219 inches maximum

Head Height:

0.070 inches minimum and 0.080 inches maximum

Internal Drive Style:

Cross recess type 1

Thread Diameter:

0.112 inches

Thready Qty Per Inch (tpi):

Min. Tensile Strength (psi):

80000 pounds per square inch

Screw Material:

Steel comp 301 or steel comp 302 or steel comp 302b or steel comp 303 or steel comp 303 plus x or steel comp 303se or steel comp 304 or steel comp 304l or steel comp 305 or steel comp 308 or steel comp 309 or steel comp 309s or steel comp 310 or steel comp 310s or steel comp 314 or steel comp 316 or steel comp 316l or steel comp 317 or steel comp 321 or steel comp 323 or steel comp 324 or steel comp 347 or steel comp 348 or steel comp 384 or steel comp 385

Thread Series Designator:

Unc

Nondefinitive Specification/std Data:

3 type and 9c style

Quick Specs

Thread Size	4
Thread Qty	40
Material	Steel
Length	7/8

Additional Information

SKU / Model:	MS5195720B
NSN:	5305-00-822-4520
FSC:	Screws / 5305
Product Series:	MS51957
Pack Weight (Approx.)	0.228 lb
Minimum Qty (MOQ):	100
Schedule B:	7318.15.6080
ECCN:	EAR99
National Motor Freight:	096640, Screws, Iron Or Steel
Download PDF Version MS51957-20B_Military-Fasteners-com.pdf

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More MS51957 machine screws

MS51957-9B

$0.24 Each, Length: 3/4in., black oxide

MS51957-9

$0.23 Each, Length: 3/4in. thread: 2-56 pan head screw corrosion resistant steel coarse thread

MS51957-8B

$0.24 EA, Fastener Length: 5/8in., Thread: 2-56, Thread Length: 5/8in.

MS51957-87

5305-00-071-2093 Machine Screw

MS51957-86

$3.54 EA, Fastener Length: 1-3/4in., Thread: 1/4-20, Thread Length: 1-3/4in.

MS51957-85

$0.42 EA, Fastener Length: 1-1/2in., Thread: 1/4-20, Thread Length: 1-1/2in.

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Product code MS51957-20B

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I was looking for hard to find parts for a safety critical application. The first couple of places I tried had the part on their web page but when I tried to order it they said, sorry, they did not actually have the parts. I called Military Fasteners. Talked to an employee without delay. She looked up the part number, told me who manufactured them (important), where the company is located (very important) and shipped the parts immediately from their own inventory. Super nice, helpful, efficient and knowledgeable. They get it.

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