FASTENERS Stainless, Brass & Nylon Inch 8
REFERENCE CHART — STAINLESS STEEL INFORMATION AUSTENITIC - Refers to 300 series stainless, the most popular of the stainless alloys accounting for 85% - 90% of stainless fasteners sold. Named for Sir Robert Williams Austen, an English metallurgist, austenitic stainless is a crystal structure formed by heating steel, chromium, and nickel to a high temperature where it forms the characteristics of 300 series stainless steel. An “ AUSTENITE ” is a molecular structure where 8 atoms of iron surround one atom of carbon, thus limiting the corrosive effects of the carbon. Austenitic fasteners have the highest level of corrosion resistance in the stainless family, cannot be hardened by heat treatment, and are non-magnetic for practical purposes. The most popular of austenitic grades is known generically as “ 18-8 ” stainless and includes grades 302, 302HQ, 303, 304, 305, and XM-7. Typical industries using 18-8 fasteners include: food, dairy, wine, chemical, pulp and paper, pharmaceutical, boating, swimming pool, pollution control, electronic, medical and hospital equipment, computer and textile. Type 316 stainless has added nickel and molybdenum. The molybdenum (called moly) sharply increases corrosion resistance to chlorides and sulfates, including various sulfurous acids in the pulp industry. It has superior tensile strength at high temperatures compared to 18-8. Besides pulp and paper, typical industries using 316 are: photographic and other chemical, ink, textile, bleach, and rubber. A2 is the metric designation for a stainless steel comparable to 18-8. A4 is the metric equivalent to 316.Stainless Steel *All hex cap may have an additional 1/4” to 3/8” thread, particularly on short length up to 1-1/2” and long lengths over 4” SCREWS — HEX HEAD CAP 18-8 STAINLESS STEEL
1
H
T
Material:
18-8 Stainless Steel
ANSI B18.2.1 1981
D
G
18-8
Plating:
None
L
F
D 1/4” 5/16” H .156 .203 F .438 .500 G .505 .577
3/8” .234 .563 .650
7/16” .281 .625 .722
1/2” .313 .750 .866
9/16” .359 .813
5/8” .391 .938
3/4” .469
7/8” .547
1”
1-1/8” .688 1.688 1.949
1-1/4” 1-1/2” 1.875 2.250 2.165 2.598 .781 .938
Diameter Height W.A.F. W.A.C.
.609
1.125 1.313 1.500
.938 1.083 1.299 1.516 1.732
D L T
UNC
UNF
D L T
UNC
UNF
D L T
UNC
UNF
1/4 3/8 3/8 078.14.38 1/4 1/2 1/2 078.14.12 069.14.12 1/4 5/8 5/8 078.14.58 1/4 3/4 3/4 078.14.34 069.14.34 069.14.1 1/4 1-1/4 3/4 078.14.114 069.14.114 1/4 1-1/2 3/4 078.14.112 069.14.112 1/4 1-3/4 3/4 078.14.134 069.14.134 1/4 2 3/4 078.14.2 069.14.2 1/4 2-1/4 s3/4 078.14.214 069.14.214 1/4 2-1/2 3/4 078.14.212 069.14.212 1/4 7/8 3/4 078.14.78 1/4 1 3/4 078.14.1 1/4 3-1/4 3/4 078.14.314 1/4 3-1/2 3/4 078.14.312 069.14.312 1/4 3-3/4 3/4 078.14.334 1/4 4 3/4 078.14.4 1/4 4-1/2 3/4 078.14.412 1/4 5 3/4 078.14.5 1/4 5-1/2 3/4 078.14.512 1/4 6 3/4 078.14.6 5/16 1/2 1/2 078.516.12 069.516.12 5/16 5/8 5/8 078.516.58 5/16 3/4 3/4 078.516.34 069.516.34 5/16 7/8 7/8 078.516.78 5/16 1 7/8 078.516.1 069.516.1 5/16 1-1/4 7/8 078.516.114 069.516.114 5/16 1-1/2 7/8 078.516.112 069.516.112 5/16 1-3/4 7/8 078.516.134 069.516.134 5/16 2 7/8 078.516.2 069.516.2 5/16 2-1/4 7/8 078.516.214 5/16 2-1/2 7/8 078.516.212 069.516.212 5/16 2-3/4 7/8 078.516.234 5/16 3 7/8 078.516.3 069.516.3 1/4 2-3/4 3/4 078.14.234 1/4 3 3/4 078.14.3 069.14.3 3/8 1/2 1/2 078.38.12 069.38.12 3/8 5/8 5/8 078.38.58 069.38.58 3/8 3/4 3/4 078.38.34 069.38.34 3/8 7/8 7/8 078.38.78 3/8 1 1 078.38.1 069.38.1 3/8 1-1/4 1 078.38.114 069.38.114 3/8 1-1/2 1 078.38.112 069.38.112 3/8 1-3/4 1 078.38.134 069.38.134 3/8 2 1 078.38.2 069.38.2 3/8 2-1/4 1 078.38.214 3/8 2-1/2 1 078.38.212 069.38.212 3/8 2-3/4 1 078.38.234 3/8 3 1 078.38.3 069.38.3 3/8 3-1/4 1 078.38.314 3/8 3-1/2 1 078.38.312 069.38.312 3/8 3-3/4 1 078.38.334 3/8 4 1 078.38.4 069.38.4 3/8 4-1/2 1 078.38.412 3/8 5 1 078.38.5 3/8 5-1/2 1 078.38.512 3/8 6 1 078.38.6 5/16 3-1/4 7/8 078.516.314 5/16 3-1/2 7/8 078.516.312 5/16 3-3/4 7/8 078.516.334 5/16 4 7/8 078.516.4 5/16 4-1/2 7/8 078.516.412 5/16 5 7/8 078.516.5 5/16 5-1/2 7/8 078.516.512 5/16 6 7/8 078.516.6
3/8 8 1-1/4 078.38.8 3/8 9 1-1/4 078.38.9 3/8 10 1-1/4 078.38.10 7/16 3/4 3/4 078.716.34 7/16 1 1 078.716.1
5/8 10 1-3/4 078.58.10 3/4 1 1 078.34.1 3/4 1-1/4 1-1/4 078.34.114 3/4 1-1/2 1-1/2 078.34.112
3/4 1-3/4 1-3/4 078.34.134 069.34.134 3/4 2 1-3/4 078.34.2 069.34.2 3/4 2-1/4 1-3/4 078.34.214 3/4 2-1/2 1-3/4 078.34.212 069.34.212
7/16 1-1/4 1-1/8 078.716.114 069.716.114 7/16 1-1/2 1-1/8 078.716.112 069.716.112 7/16 1-3/4 1-1/8 078.716.134 069.716.134 7/16 2 1-1/8 078.716.2 069.716.2 7/16 2-1/4 1-1/8 078.716.214 7/16 2-1/2 1-1/8 078.716.212 069.716.212 7/16 2-3/4 1-1/8 078.716.234 7/16 3 1-1/8 078.716.3 069.716.3
3/4 2-3/4 1-3/4 078.34.234 3/4 3 1-3/4 078.34.3 3/4 3-1/4 1-3/4 078.34.314 3/4 3-1/2 1-3/4 078.34.312 3/4 3-3/4 1-3/4 078.34.334 3/4 4 1-3/4 078.34.4 3/4 4-1/2 1-3/4 078.34.412 3/4 5 1-3/4 078.34.5 3/4 5-1/2 1-3/4 078.34.512 3/4 6 1-3/4 078.34.6 3/4 6-1/2 2 078.34.612 3/4 7 2 078.34.7.0 3/4 7-1/2 2 078.34.712 3/4 8 2 078.34.8 3/4 9 2 078.34.9 7/8 1-1/2 1-1/2 078.78.112 7/8 1-3/4 1-3/4 078.78.134 7/8 2 2 078.78.2 7/8 2-1/4 2 078.78.214 7/8 2-1/2 2 078.78.212 7/8 2-3/4 2 078.78.234 7/8 3 2 078.78.3 7/8 3-1/4 2 078.78.314 7/8 3-1/2 2 078.78.312 7/8 3-3/4 2 078.78.334 7/8 4 2 078.78.4 7/8 4-1/2 2 078.78.412 7/8 5 2 078.78.5 7/8 5-1/2 2 078.78.512 7/8 6 2 078.78.6 1 2 2 078.1.2 1 2-1/2 2-1/4 078.1.212 1 2-3/4 2-1/4 078.1.234 1 3 2-1/4 078.1.3 1 3-1/2 2-1/4 078.1.312 1 3-3/4 2-1/4 078.1.334 1 4 2-1/4 078.1.4 1 4-1/2 2-1/4 078.1.412 1 5 2-1/4 078.1.5 1 5-1/2 2-1/4 078.1.512 1 6 2-1/4 078.1.6 1 7 2-1/2 078.1.7.0 1 8 2-1/2 078.1.8 1-1/8 3 2-1/2 078.118.3 1-1/8 3-1/2 2-1/2 078.118.312 1-1/8 5-1/2 2-1/2 078.118.512 1-1/8 6 2-1/2 078.118.6 1-1/4 3 2-3/4 078.114.3 1-1/4 4 2-3/4 078.114.4 1-1/4 4-1/2 2-3/4 078.114.412 1-1/4 5 2-3/4 078.114.5 1-1/4 5-1/2 2-3/4 078.114.512 1-1/4 6 2-3/4 078.114.6 1-1/2 6 3-1/4 078.112.6
7/16 3-1/2 1-1/8 078.716.312 7/16 4 1-1/8 078.716.4 7/16 4-1/2 1-1/8 078.716.412 7/16 5 1-1/8 078.716.5 7/16 5-1/2 1-1/8 078.716.512 1/2 3/4 3/4 078.12.34 1/2 7/8 7/8 078.12.78 1/2 1 1 078.12.1
069.12.1 1/2 1-1/4 1-1/4 078.12.114 069.12.114 1/2 1-1/2 1-1/4 078.12.112 069.12.112 1/2 1-3/4 1-1/4 078.12.134 069.12.134 1/2 2 1-1/4 078.12.2 069.12.2 1/2 2-1/4 1-1/4 078.12.214 1/2 2-1/2 1-1/4 078.12.212 069.12.212 1/2 3 1-1/4 078.12.3 069.12.3 1/2 3-1/4 1-1/4 078.12.314 1/2 3-1/2 1-1/4 078.12.312 069.12.312 1/2 4 1-1/4 078.12.4 069.12.4 1/2 4-1/2 1-1/4 078.12.412 1/2 5 1-1/4 078.12.5 1/2 5-1/2 1-1/4 078.12.512 1/2 6 1-1/4 078.12.6 1/2 6-1/2 1-1/2 078.12.612 1/2 7 1-1/2 078.12.7.0 1/2 7-1/2 1-1/2 078.12.712 1/2 8 1-1/2 078.12.8 1/2 9 1-1/2 078.12.9 1/2 11 1-1/2 078.12.11 9/16 1-1/2 1-3/8 078.916.112 9/16 2 1-3/8 078.916.2 069.916.2 9/16 2-1/2 1-3/8 078.916.212 9/16 3 1-3/8 078.916.3 069.916.3 5/8 1 1 078.58.1 5/8 1-1/4 1-1/4 078.58.114 5/8 1-1/2 1-1/2 078.58.112 069.58.112 5/8 1-3/4 1-1/2 078.58.134 069.58.134 5/8 2 1-1/2 078.58.2 069.58.2 5/8 2-1/4 1-1/2 078.58.214 5/8 2-1/2 1-1/2 078.58.212 069.58.212 5/8 2-3/4 1-1/2 078.58.234 5/8 3 1-1/2 078.58.3 069.58.3 5/8 3-1/4 1-1/2 078.58.314 5/8 3-1/2 1-1/2 078.58.312 5/8 3-3/4 1-1/2 078.58.334 5/8 4 1-1/2 078.58.4 069.58.4
5/8 4-1/2 1-1/2 078.58.412 5/8 5 1-1/2 078.58.5 5/8 5-1/2 1-1/2 078.58.512 5/8 6 1-1/2 078.58.6 5/8 6-1/2 1-3/4 078.58.612 5/8 7 1-3/4 078.58.7.0 5/8 7-1/2 1-3/4 078.58.712 5/8 8 1-3/4 078.58.8
3/8 6-1/2 1-1/4 078.38.612 3/8 7 1-1/4 078.38.7.0
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