Case study · Oil & gas
5,000 A-286 flat head socket cap screws for oil and gas assemblies
Flat head socket cap screws, UNC-3A × 1/2", in ASTM A453 Grade 660 Class A (A-286) for oil and gas assemblies. Small parts, big quantities.
5,000
Flat head socket cap screws
3A
UNC thread class
660 A
ASTM A453 grade, class
130 ksi
A453 660 min tensile
The challenge
What the customer needed.
Oil and gas assemblies called for 5,000 flat head socket cap screws, UNC-3A × 1/2", in ASTM A453 Grade 660 Class A.
A453 Grade 660 is A-286, an iron-nickel-chromium superalloy strengthened by titanium and aluminum precipitates, for joints that must hold their clamp load hot.
What we made
The parts.
5,000 flat head socket cap screws, UNC-3A × 1/2", in ASTM A453 Grade 660 Class A.
The result
How it turned out.
Small parts, big quantities: 5,000 superalloy screws to Class 3A threads.
A453 Grade 660 Class A calls for 130 ksi minimum tensile and 85 ksi minimum yield, with hardness of 24 to 37 HRC.
Job at a glance
PartFlat head socket cap screw
ThreadUNC-3A
Length1/2"
GradeASTM A453 Grade 660 Class A
AlloyA-286
Quantity5,000
Made inHouston, Texas · ISO 9001 certified
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