O 80 UNF screw is the screw’s size according to UNF standard, so the 0 80 UNF screw is also called #0-80 thread screw. The standard designation for a UTS thread is a number indicating the nominal (major) diameter of the thread, followed by the pitch measured in threads per inch. For diameters smaller than 1⁄4 inch, the diameter is indicated by an integer number defined in the standard; for all other diameters, the inch figure is given. Ever Hardware provides custom-made fasteners and customizable packaging.

Unified Screw Threads — UNC, UNF and UNEF
Major diameter Thread density (d, threads per inch) and thread pitch (p) Preferred cutting tap drill size
(inch \ mm) Coarse (UNC) Fine (UNF) Extra fine (UNEF)
d (TPI) p (inch \ mm) d (TPI) p (inch \ mm) d (TPI) p (inch \ mm) Coarse Fine Extra fine
#0 0.0600 \ 1.5240 None 80 0.012500 \ 0.3175 None 364 in
#1 0.0730 \ 1.8542 64 0.015625 \ 0.3969 72 0.013888 \ 0.3528 None #53 #53
#2 0.0860 \ 2.1844 56 0.017857 \ 0.4536 64 0.015625 \ 0.3969 None #50 #50
#3 0.0990 \ 2.5146 48 0.020833 \ 0.5292 56 0.017857 \ 0.4536 None #47 #45
#4 0.1120 \ 2.8448 40 0.025000 \ 0.6350 48 0.020833 \ 0.5292 None #43 #42
#5 0.1250 \ 3.1750 40 0.025000 \ 0.6350 44 0.022727 \ 0.5773 None #38 #37
#6 0.1380 \ 3.5052 32 0.031250 \ 0.7938 40 0.025000 \ 0.6350 None #36 #33
#8 0.1640 \ 4.1656 32 0.031250 \ 0.7938 36 0.027778 \ 0.7056 None #29 #29
#10 0.1900 \ 4.8260 24 0.041667 \ 1.0583 32 0.031250 \ 0.7938 None #25 #21
#12 0.2160 \ 5.4864 24 0.041667 \ 1.0583 28 0.035714 \ 0.9071 32 0.031250 \ 0.7938 #16 #14 316 in
14 0.2500 \ 6.3500 20 0.050000 \ 1.2700 28 0.035714 \ 0.9071 32 0.031250 \ 0.7938 #7 #3 732 in
516 0.3125 \ 7.9375 18 0.055556 \ 1.4111 24 0.041667 \ 1.0583 32 0.031250 \ 0.7938 F I 932 in
38 0.3750 \ 9.5250 16 0.062500 \ 1.5875 24 0.041667 \ 1.0583 32 0.031250 \ 0.7938 516 in Q 1132 in
716 0.4375 \ 11.1125 14 0.071428 \ 1.8143 20 0.050000 \ 1.2700 28 0.035714 \ 0.9071 U 2564 in Y
12 0.5000 \ 12.7000 13 0.076923 \ 1.9538 20 0.050000 \ 1.2700 28 0.035714 \ 0.9071 2764 in 2964 in 1532 in
916 0.5625 \ 14.2875 12 0.083333 \ 2.1167 18 0.055556 \ 1.4111 24 0.041667 \ 1.0583 3164 in 12 in 3364 in
58 0.6250 \ 15.8750 11 0.090909 \ 2.3091 18 0.055556 \ 1.4111 24 0.041667 \ 1.0583 1732 in 916 in 3764 in
34 0.7500 \ 19.0500 10 0.100000 \ 2.5400 16 0.062500 \ 1.5875 20 0.050000 \ 1.2700 2132 in 1116 in 4564 in
78 0.8750 \ 22.2250 9 0.111111 \ 2.8222 14 0.071428 \ 1.8143 20 0.050000 \ 1.2700 4964 in 5164 in 5364 in
1 1.0000 \ 25.4000 8 0.125000 \ 3.1750 12(*) 0.083333 \ 2.1167 20 0.050000 \ 1.2700 78 in 5964 in 6164 in
Category 0 80 UNF Screw
Finish Electro-Plating
Thread type Metric/Imperial/According to Request
Material Stainless Steel/Carbon Steel/Aluminum/Brass/Copper, etc.
Brand Ever Hardware
Place of origin China Mainland
Size option M1.0 to M18/#0 to 1/2″
0 80 UNF screw standard screw thread size 0 screw stainless steel

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What Client’s Say

Those look great! All the specs look perfect.
Kent De Mond
Perfect ! This is that I need.
Hernán Balboa
Thank you very much.
The bolts are perfect and they’re fits good.
Ashley
The nut fits perfect on our M2.5 screw part.
Height is also ok.
Mirjam
I tested the bolts this morning and they are perfect. Thank you so much.
Bill McDonald

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