Introducing hex Allen bolts, also called cap bolts, which are capable of providing high tightening torque.

Hexagon socket head cap screw

Hex Allen Bolts (Caps)

Because hex Allen bolts are generally not used together with nuts, "screw" is the more appropriate term for this type of product.

However, the name "hexagon socket head cap screw" (or cap bolt) has become prevalent.

Applicable strength classifications: 8.8 - 10.9 - 12.9.
May be tightened with a hex Allen key wrench. (Up to 1,000mm length to bottom of head)

Features

  • Makes compact equipment design possible.
  • Makes improved aesthetic design possible.
  • Improves functionality and workability in confined spaces.
  • High tightening performance to improve reliability against loosening.

Hex Allen Bolts (Caps)

*Click to enlarge

Nominal thread size (d) M30 Allowed tolerance M33 Allowed tolerance M36 Allowed tolerance M42 Allowed tolerance M48 Allowed tolerance
P 3.5 - 3.5 - 4.0 - 4.5 - 5.0 -
b (reference) 72   78   84   96   108  
dk 45 0.39 50 0.46 54 0.46 63 0.46 72 0.46
da (Max) 33.4 - 36.6 - 39.4 - 45.6 - 52.6 -
ds 30 +0
-0.33
33 +0
-0.39
36 +0
-0.39
42 +0
-0.39
48 +0
-0.39
e (Min) 25.15 - 27.43 - 30.85 - 36.57 - 41.13 -
k 30 +0
-0.52
33 +0
-0.62
36 +0
-0.62
42 +0
-0.62
48 +0
-0.62
r (Min) 1 - 1 - 1 - 1.2 - 1.6 -
s 22 +0.07
+0.275
24 +0.07
+0.27
27 +0.07
+0.27
32 +0.08
+0.33
36 +0.08
+0.33
t (Min) 15.5 - 16.5 - 19 - 24 - 28 -
w 13.1 - 15 - 15.3 - 16.3 - 17.5 -
L - common tolerance
45~50 0.5 190~250 0.95
55~80 0.6 260~300 1.05
90~120 0.7    
130~180 0.8    
Note: Full length threading used for M30 less than 100mm
M33 less than 105mm
M36 less than 110mm
M42 less than 130mm
M48 less than 150mm

Large Machinery/Civil Engineering/Shipbuilding-related Products

| Hexagon Bolts (4.6 - 12.9) | Hexagon socket head cap screw ( 8.8 - 10.9 ) | Stainless Bolts |

Other uses for track spikes, trapezoidal screws, etc.

See detail

track spikes Why not use for decorative purposes? Track spikes and screws can be used as commemorative gifts.
Track spikes, also called "dog spikes" due to their resemblance to a dog's head, can be used in variety of applications. Try using them as decorations for outside walls or as hanging hooks.

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