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METRIC FASTENERS DIMENSIONAL DATA
Holo-Krome Dimensions of Metric Socket Shoulder Screws
HOLO-KROME
SHOULDER
SCREWS

Holo-Krome Metric Shoulder Screws  Holo-Krome Metric Shoulder Screws Dimensional Data
 
NOMINAL
SIZE
OR BASIC
SCREW
DIAMETER		 D A H D1 E I
J
SHOULDER
DIAMETER 		HEAD
DIAMETER 		HEAD
HEIGHT 		NOMINAL
THREAD
SIZE OR
BASIC THREAD
DIAMETER 		THREAD
PITCH 		THREAD
LENGTH 		NECK
WIDTH
 HEXAGON
SOCKET
SIZE
MAX. MIN. MAX. MIN. MAX. MIN. BASIC MIN. NOM.
6.00 6.000 5.982 10.0 9.78 4.50 4.32 M5 0.8 9.75 2.0 3
8.00 8.000 7.978 13.00 12.73 5.50 5.32 M6 1.0 11.25 2.5 4
10.00 10.000 9.978 16.00 15.73 7.00 6.78 M8 1.25 13.25 3.1 5
12.00 12.000 11.973 18.00 17.73 9.00 8.78 M10 1.50 16.40 3.7 6
16.00 16.000 15.973 24.00 23.67 11.00 10.73 M12 1.75 18.40 4.4 8
20.00 20.000 19.967 30.00 29.67 14.00 13.73 M16 2.00 22.40 5.0 10

  NOTES
  1. SHOULDER. Shoulder refers to the enlarged unthreaded portion of the screw, the diameter of which serves as the basis for derivation of the nominal size.
  2. HEAD DIAMETER. The head may be plain or knurled at the option of Holo-Krome.
  3. HEAD CHAMFER. The head shall be chamfered. The chamfer shall be at an angle of 30-50 degrees with the plane of the top of the head. The edge between the top of the head and the chamfer may be slightly rounded.
  4. LENGTH. The length of screw shall be measured parallel to the axis of screw from the plane of the bearing surface under the head to the plane of the shoulder at threaded end. The basic length dimension on the product shall be the nominal length.
  5. THREAD LENGTH TOLERANCE. The tolerance on thread length shall be minus 0.50 mm for screw sizes up to 10mm inclusive, and minus 0.80 mm for screw sizes larger than 10mm.
  6. THREADS. Threads shall conform to ANSI B1.13M Class 4g6g Coarse Series.
  7. MATERIAL. Steel, high-grade alloy, hardened by quenching in oil from the hardening temperature and tempered to a hardeness of Rockwell C32 to 43.
  8. Holo-Krome shoulder screws conform to ASME/ANSI B18.3.3M, except the 6mm & 12mm sizes currently being produced.

Caution: Information is for general reference only.
For more complete specifications consult the standards referenced, or contact us.