UNF 3/8 Socket Cap Screw High Tensile 12.9 Self Colour DIN912 – Fixaball Ltd. Fixings and Fasteners UK
UNF, 3/8" (24 T.P.I.), Fine Pitch, High Tensile (Grade 'S'/ 12.9), Self Colour DIN 912. Allen (hex) Socket, Cap Head, Allen Screw/ Bolt, ISO 4762, BS 2470, Series 1960. Fixaball sells lengths of 3/8", UNF, Allen (hex) Socket, Cap Head, Allen Screw/ Bolt What is a socket cap screw/ bolt? The, ‘Socket Cap Screw/ Allen Bolt,’ term is used to describe a fastener that is either fully or partially threaded.
UNF, 3/8 (24 T.P.I.), Fine Pitch, High Tensile (Grade 'S'/ 12.9), Self Colour DIN 912. Allen (hex) Socket, Cap Head, Allen Screw/ Bolt, ISO 4762, BS 2470, Series 1960.
Fixaball sells all lengths of 3/8, UNF, Allen (hex) Socket, Cap Head, Allen Screw/ Bolt.
What is a socket cap screw/ bolt?
The, ‘Socket Cap Screw/ Allen Bolt,’ term is used to describe a fastener that is either fully or partially threaded. A screw is fully threaded and a bolt is partialy threaded. Some engineers may call them screws if the person uses the shorter length range of sizes. The thread stays the same length as the fastener gets longer and the maximum length of thread is equal to 2.5 times the diameter (or thereabouts). ‘Socket,’ refers to the hexagon shaped indentation found on the top of the fasteners’ head. Here, you can use a hexagon key (Allen Key) to tighten and loosen the fastener. 'Cap' refers to the cylindrical shaped head.
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UNF, 3/8 (24 T.P.I.) Allen Socket, Cap Head Screw/ Bolt lengths at Fixaball:
(FT - Fully Threaded, PT - Partially Threaded)
3/8-24x3/8,(FT) SOCKET HEAD CAP SCREWS UNF S/COLOUR 1936-1960
3/8-24x1/2,(FT) SOCKET HEAD CAP SCREWS UNF S/COLOUR 1936-1960
3/8-24x5/8,(FT) SOCKET HEAD CAP SCREWS UNF S/COLOUR 1936-1960
3/8-24x3/4,(FT) SOCKET HEAD CAP SCREWS UNF S/COLOUR 1936-1960
3/8-24x7/8,(FT) SOCKET HEAD CAP SCREWS UNF S/COLOUR 1936-1960
3/8-24x1,(FT) SOCKET HEAD CAP SCREWS UNF S/COLOUR 1936-1960
3/8-24x1 1/4,(FT) SOCKET HEAD CAP SCREWS UNF S/COLOUR 1936-1960
3/8-24x1 1/2,(FT) SOCKET HEAD CAP SCREWS UNF S/COLOUR 1936-1960
3/8-24x2,(PT) SOCKET HEAD CAP SCREWS UNF S/COLOUR 1936-1960
3/8-24x2 1/4,(PT) SOCKET HEAD CAP SCREWS UNF S/COLOUR 1936-1960
3/8-24x2 2.1/2,(PT) SOCKET HEAD CAP SCREWS UNF S/COLOUR 1936-1960
3/8-24x2 3/4,(PT) SOCKET HEAD CAP SCREWS UNF S/COLOUR 1936-1960
3/8-24x3,(PT) SOCKET HEAD CAP SCREWS UNF S/COLOUR 1936-1960
3/8-24x3 1/4,(PT) SOCKET HEAD CAP SCREWS UNF S/COLOUR 1936-1960
3/8-24x4,(PT) SOCKET HEAD CAP SCREWS UNF S/COLOUR 1936-1960
3/8-24x4 1/2,(PT) SOCKET HEAD CAP SCREWS UNF S/COLOUR 1936-1960
3/8-24x5,(PT) SOCKET HEAD CAP SCREWS UNF S/COLOUR 1936-1960
3/8-24x5 1/2,(PT) SOCKET HEAD CAP SCREWS UNF S/COLOUR 1936-1960
3/8-24x6,(PT) SOCKET HEAD CAP SCREWS UNF S/COLOUR 1936-1960
High Tensile – 12.9 Grade.
Fixaball – Specialist Fixings and Fasteners
UNC/ UNF Socket Cap Screws Dimensions
Conforming to ASME/ ANSI B18.3 1960 Series
All measurements in Inches
Pitch TPI
Head Diameter
Shank Diameter
Head Height
Hex Key Size
Diameter
UNC
UNF
Max
Max
Max
Nom
3/8
16
24
0.56
0.38
0.38
5/16
Available Materials: Plain/ Self Colour/ Black
Material/ Finish
Appearance
Level of Corrosion Resistance
Typical Application
High Tensile Steel (12.9)
Self-Colour (black)
Low, without further surface treatment
- No exposure to moisture
- Often Greased/ Oilied
UNIFIED THREAD STANDARDS
The basic American standards for fastening screw threads as agreed upon by standard bodies of Canada, the United Kingdom, and the United States. They are a complete and integrated system of threads for fastening purposes. Their outstanding characteristic is general interchangeability of threads achieved through the standardization of thread form, diameter-pitch combinations, and limits of size
Unified National Fine (UNF) is a thread form with a 60 degree flank angle rounded roots and flat crests. For a given diameter it has a smaller thread pitch than an equivalent diameter UNC thread.
Unified National (UN) thread form with a rounded root contour, applies only to external threads. (The UN thread form has a flat, or optionally, a rounded root contour.) The majority of fasteners with a Unified thread form (UNC UNF) have a rounded root contour i.e. are UNR threads.
Image is for illustrative purposes only.
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