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Sales Systems Limited Products and Services > Fasteners Reference Guide > Bolts / Screws > Socket Screws > Spline Keys and Bits > Item # SKB01580XXX  
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Item # SKB01580XXX, Spline Key and Bit, with 0.1830" Major Dia.


  • Each end shall be square with the axis of each arm within 4 deg, and edges may be sharp or chamfered at the option of the manufacturer. The chamfer shall not exceed the values listed.
  • Material (Steel Alloy). The spline keys shall be fabricated from an alloy steel having two or more of the following alloying elements: chromium, nickel, molybdenum, or vanadium, in sufficient quantity to assure that the specified minimum hardness of 48 HRC at the surface for sizes up to and including 0.372 in., and 45 HRC for sizes over 0.372 in., is met when spline keys are hardened by quenching from the austenitizing temperature and tempered.
  • For plated keys, all dimensions are before plating. Because of the high hardness of these products, it is recommended that they not be electroplated.
  • Bits are available, but lengths have not been standardized.
  • Spline keys shall be furnished as Short Arm Series or Long Arm Series.
  • Designation. To promote uniformity and understanding in communications relating to products conforming to this standard, it is recommended that Spline Keys be designated in accordance with the following data, preferably in the sequence shown:
    (a) product name
    (b) designation of the standard
    (c) nominal key size
    (d) series
    (e) protective finish, if required

    Examples:

    Spline Key, ASME B18.3, 0.111 Short Arm Series
    Spline Key, ASME B18.3, 0.372 Long Arm Series, Nickel Plated




Manufacturer  · Specifications  · Codes and Standards

Manufacturer

Manufacturer
Industrial Fasteners Institute


Specifications

Product
Socket Screws

Unit of Measure
English

Nominal Keys and Socket Size
0.183 in

Max. Major Dia. (M)
0.1830 in

Min. Major Dia. (M)
0.1815 in

Max. Minor Dia. (W)
0.1580 in

Min. Minor Dia. (W)
0.1565 in

Number of Splines
6

Max. Width of Space (N)
0.0440 in

Min. Width of Space (N)
0.0425 in

Max. Length (B)
0.938 in

Min. Length (B)
0.750 in

Max. Short Arm Series Length (C)
2.594 in

Min. Short Arm Series Length (C)
2.406 in

Max. Long Arm Series Length (C)
4.219 in

Min. Long Arm Series Length (C)
4.031 in

Min. Radius of Bend (R)
0.156 in

Max. Chamfer (K)
0.016 in


Codes and Standards

Codes and Standards
ASME B18.3 2002


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