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US Machine Screws - Dimensions

Machine screw diameters

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Size no.	Thread Diameter
	Decimal (in) Load Calculator!	Nearest Fractional (in)	TPI
	2	0.086	3/32	64
	3	0.099	7/64	56
4	0.112	7/64	48
6	0.138	9/64	40
8	0.164	5/32	36
10	0.190	3/16	32
12	0.216	7/32	28

TPI = threads per inch
threads according UNF – Unified National Fine Thread

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Related Topics

Miscellaneous - Engineering related topics like Beaufort Wind Scale, CE-marking, drawing standards and more
Fasteners - Bolts, nuts and threaded rods - torque, tension and loads

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Metric Steel Bolts - Grades and Property Classes - Metric steel bolts, screws and studs - proof and tensile strength
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UNC and UNF - Unified Inch Screw Threads - ANSI/ASME B1.1 Unified National Thread - UNC Coarse series and UNF Fine series
US Bolts - Head and Wrench Sizes - Hex Bolt, Lag Bolt, Square Bolt and Heavy Hex Bolt
US Bolts - Tightening Torques - Recommended bolt torques
US Machine Screws - Dimensions - Machine screw diameters
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