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Technical Information Shaft Collar in Shell
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Socket Head Cap Screws

 
 
Product
Material
Selection
Product Line - Standard Parts; Custom Quotes Available
Collars Rigid
Couplings
Beam
Couplings
Bellows
Couplings
Jaw
Couplings
Oldham
Couplings
Disc
Couplings
Steel Inch & Metric
Alloy Steel
Inch & Metric
Alloy Steel
with Nypatch®
-- -- -- -- --
Zinc Plated
Steel
Inch & Metric
Zinc Plated
Alloy Steel
-- -- -- -- -- --
Aluminum Inch & Metric
Alloy Steel
Inch & Metric
Alloy Steel
with Nypatch®
Metric Alloy
Steel
(P-Series)
(M-Series)

Metric Alloy
Steel with
Nypatch®
(F-Series)
Metric
Alloy Steel
Metric
Alloy Steel
Metric
Alloy Steel
Metric
Alloy Steel
18-8
Stainless
Steel
Inch & Metric
18-8
Stainless Steel
Inch & Metric
18-8
Stainless Steel
with Nypatch®
Metric Alloy
Steel
(P-Series)
(M-Series)

Metric Alloy
Steel with
Nypatch®
(F-Series)
-- -- -- --
316
Stainless
Steel
Inch & Metric
316
Stainless Steel
-- -- -- -- -- --
Plastic
(Acetal)
Inch & Metric
18-8
Stainless Steel
-- -- -- -- -- --

Alloy Steel Inch dimension alloy steel socket head cap screws, forged (NOT BROACHED), with black oxide finish 12.9 BK, specification ANSI/ASME 18.3 1998, Class 3A fully formed threads to meet ASTM A574-90 property class 12.9, and ASTM F606 1990.
Metric
Alloy Steel
Metric dimension alloy steel socket head cap screws, forged (NOT BROACHED), with black oxide finish, DIN 912 12.9 BK, Class 3A fully formed threads to meet ANSI/ASME 18.3.1M 1986, ANSI B1.13M 1986 thread class 4g6g, ASTM 574M-90 Property Class 12.9, and ASTM F606 1990.
Zinc Plated
Alloy Steel
Inch dimension alloy steel socket head cap screws, forged (NOT BROACHED), with a yellow “Trivalent” chromate conversion bright finish zinc plating, type II SC1 (mild service condition), Fe/Zn 5 (.0002” minimum thickness) to meet or exceed ASTM B633-98 specification.
Metric
Zinc Plated
Alloy Steel
Metric dimension alloy steel socket head cap screws, forged (NOT BROACHED), with a yellow “Trivalent” chromate conversion bright finish zinc plating, type II SC1 (mild service condition), Fe/Zn 5 (.0002” minimum thickness) to meet or exceed ASTM B633-98 specification.
18-8
Stainless Steel
Inch dimension 18-8 (300 Series) austenitic stainless steel socket head cap screws, forged (NOT BROACHED), bright finish, meet or exceed specification ANSI/ASME 18.3 1998, Class 3A full formed thread, ASTM F837-91 Group 1 Condition CW, and ASTM F606 1990.
Metric
18-8
Stainless Steel
Metric dimension 18-8 (300 Series) austenitic stainless steel socket head cap screws, forged (NOT BROACHED), bright finish, meet or exceed specification DIN 912 and ANSI/ASME 18.3.1M 1986, Class 3A fully formed thread, ASTM F837M-91 Group 1 Condition CW, and ASTM F606 1990.
316
Stainless Steel
Inch dimension 316/316L austenitic stainless steel socket head cap screws, forged (NOT BROACHED), bright finish, meet or exceed specification ANSI/ASME 18.3 1998, Class 3A full formed thread, ASTM F837-91 Group 1 Condition CW, and ASTM F606 1990.
Metric
316
Stainless Steel
Metric dimension 316/316L  austenitic stainless steel socket head cap screws, forged (NOT BROACHED), bright finish, meet or exceed specification DIN 912 and ANSI/ASME 18.3.1M 1986, Class 3A fully formed thread, ASTM F837M-91 Group 1 Condition CW, and ASTM F606 1990.
Nypatch® Rulands Nypatch® vibration resistant feature is a proprietary process that involves depositing a 360 degree coating of Nylon on several threads of the socket head cap screw. This coating reduces vibration which can cause threads to loosen, and reduces galling of the screw threads in stainless steel couplings.

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