Allen Bolt Screw

manufacturer & exporter of : Steel pipe clamps, sanitary fittings & hardware items

Socket Screws are also known as Allen Head Bolt and are fastened with a hex Allen Wrench. Socket Screws are available in various head styles and materials.

STANDARDS:-

DIN/BS EN ISO

MATERIAL

Alloy Steel & Stainless Steel (304, 304L, 316, 316L)

SIZE RANGE

M5 TO M24 In metrics series

Bigger sizes can be manufactured as per order.

THREADS:-

Metrics Coarse and Metric Fine

Typical Grades & Standards:-

A2-70/80, A4-70/80

DIN 912

DIN 7991

ISO 7380

Any other specific grade can be manufactured upon request with short lead times.

Ordering Information:-

Dimensions – Size Dia and Length.

Standards and Material Grade

Nut and washer quantity

DIN 603 STAINLESS STEEL CARRIAGE BOLT/MUSHROOM BOLT

Threads (d)M6M8M10M12
dkMin15.4519.3523.3529.35
Max16.5520.6524.6530.65
dsMin5.527.429.4211.3
Max681012
fMin3.44.45.47.25
Max4.65.66.68.75
kMin3.124.124.626.05
Max3.884.885.386.95
r1Approx12.61619.224.1
r2Max0.50.50.51
r3Max0.91.21.51.8
vMin5.527.429.4211.3
Max6.488.5810.5812.7
(b)1<125*18222630
125<20024283236
1>200*37414549

DIN 931 HEX BOLTS (HALF THREAD ) Grades -4.6, 8.8. A2 80, A4 70 and A4 80

A320 L7 HEX BOLTS

Threads (d)M6M8M10M12M16M20M24M27M30M33M36M39M42M45M52
Across flat (s)Min9.7812.7316.7318.723.6729.6735.3840454953.858.863.168.178.1
Max101317192430364146505560657080
Across corner (e)Min11.0514.3818.921.126.7533.5339.9845.250.8555.3760.7966.4471.376.9588.25
Head Thickness(k)Min3.855.156.227.329.8212.2814.7816.6518.2820.5822.0824.5825.5827.5832.5
Max4.154.456.587.6810.1812.7215.2217.3519.1221.4222.9225.4226.4228.4233.5
Washer face Depth(c)Min0.150.150.150.150.20.20.20.20.20.20.20.30.30.30.3
Max0.50.60.60.60.80.80.80.80.80.80.81111
Washer face Dia(dw)Min0.150.150.150.150.20.20.20.20.20.20.20.30.30.30.3
Max0.50.60.60.60.80.80.80.80.80.80.81111
Shank Diameter(ds)Min5.827.789.811.7315.7319.6723.672730333639424552
Max68101216202426.4829.4832.3835.3838.3841.3844.3851.26
Head junction Radius(r)Min0.250.40.40.60.60.80.8111111.21.21.6
Thread Length (b)1<125*182226303846546066
125<20024283236445260667278849096102116
1>200*3741454957657379859197103109115129

DIN 933 HEX SCREWS (FULL THREAD) gRADES 4.6, 8.8 , 10.9, A2 70, A4 70 AND A4 80

Threads (d)M6M8M10M12M16M20M24M27M30M33M36M39M42M45M52
Across flat (s)Min9.7812.7316.7318.723.6729.6735.3840454953.858.863.168.178.1
Max101317192430364146505560657080
Across corner (e)Min11.0514.3818.921.126.7533.5339.9845.250.8555.3760.7966.4471.376.9588.25
Head Thickness(k)Min3.855.156.227.329.8212.2814.7816.6518.2820.5822.0824.5825.5827.5832.5
Max4.155.456.587.6810.1812.7215.2217.3519.1221.4222.9225.4226.4228.4233.5
Unthreaded Length(a)Min11.251.51.7522.5333.53.5444.54.55
Max344.55.367.59910.510.5121213.513.55
Washer face Depth(c)Min0.150.150.150.150.20.20.20.20.20.20.20.3300.30.3
Max0.50.60.60.60.80.80.80.80.80.80.81111
Washer face Depth(dw)Min8.8811.6315.617.422.49281933.613842.746.551.155.955.964.774.2
Head junction Radius(r)Min0.250.40.40.60.60.80.8111111.21.21.6

Karishma Steel is an ISO 9001:2015 Certified Company. We are Manufacturer & Exporter of : Steel Pipe Clamps, Sanitary Fittings & Hardware Items

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