Socket Screws

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Socket Low Head Cap Screws

Low Head Socket Cap Screws


Description:

Low head socket screws from ITA Fasteners are precision fasteners. They are used in low screw head height applications. Please note that this restricts the use of these screws to low strength applications. They come in stainless steel, carbon steel or alloy steel make, allowing these screws to resist corrosion and be used in underwater applications as well. In general, these screws are used in the designing of metal shears which require very low head length. Due to its low height and clean appearance, they are also used in home furniture assembly.

Despite its low height, the screws provide maximum fatigue control which is due to the tightly controlled fillet between the head and body. We stock low head socket cap screws in several dimensions depending on individual requirements. We also undertake custom orders of varying sizes. We assure prompt delivery of all our products in a short period.


Dimensional Standards:

DIN 7984, ASME B18.3.1M


Size range:

Metric: M4 to M20

Low Head Socket Cap Screws Dimensions

DIN 7984: Low Head Socket Cap Screws

DIN 7984-1 Dimensions
Thread d M3M4M5M6M8M10M12(M14)M16(M18)M20(M22)M24
P 0,50,70,811,251,51,75222,52,52,53
bl?125mm12141618222630343842465054
125>l?200mm----283236404448525660
l>200mm--------5761656973
dknominal=max.5,578,510131618212427303336
min.5,326,788,289,7812,7315,7317,7320,6723,6726,6729,6732,6135,61
damax.3,64,75,76,89,211,213,715,717,720,222,424,426,4
dsnominal=max.345681012141618202224
min.2,863,824,825,827,79,7811,7313,7315,7317,7319,6721,6723,67
dwmin.4,846,27,79,212,0315,0317,0319,8322,8325,8328,8331,6134,61
emin.2,32,873,444,585,728,019,1511,4313,7213,72161619,44
fmax.0,510,60,60,681,021,021,871,871,871,872,042,042,04
knominal=max.22,83,545678910111213
min.1,862,663,323,824,825,826,787,788,789,7810,7311,7312,73
rmin.0,10,20,20,250,40,40,60,60,60,60,80,80,8
snominal22,534578101212141417
min.2,022,523,024,025,027,0258,02510,02512,03212,03214,03214,03217,05
max.2,12,63,14,125,147,1758,17510,17512,21212,21214,21214,21217,23
tnominal1,52,32,733,84,555,35,56,57,588
min.1,382,182,582,883,624,354,855,155,356,327,327,827,82
max.1,622,422,823,123,954,655,155,455,656,687,688,188,18
vmax.0,30,40,50,60,811,21,41,61,822,22,4
Thread dM3M4M5M6M8M10
lShank lengths ls and lg
nominalmin.max.ls min.lg max.ls min.lg max.ls min.lg max.ls min.lg max.ls min.lg max.ls min.lg max.
54,765,24-1,5          
65,766,24-1,5-2,1        
87,718,29-1,5-2,1-2,4      
109,7110,29-1,5-2,1-2,4-3    
1211,6512,35-1,5-2,1-2,4-3-3,75  
-1413,6514,35-1,5-2,1-2,4-3-3,75  
1615,6516,35-1,5-2,1-2,4-3-3,75-4,5
-1817,6518,35-1,5-2,1-2,4-3-3,75-4,5
2019,5820,425,58-2,1-2,4-3-3,75-4,5
2524,5825,42  7,511-2,4-3-3,75-4,5
3029,5830,42    1014712-3,75-4,5
3534,535,5      12176,7513-4,5
4039,540,5      172211,75186,514
4544,545,5        16,752311,519
5049,550,5        21,752816,524
-5554,455,6        26,753321,529
6059,460,6        31,753826,534
7069,470,6          36,544
Thread dM12M14M16M18M20M22M24
lShank lengths ls and lg
nominalmin.max.ls min.lg max.ls min.lg max.ls min.lg max.ls min.lg max.ls min.lg max.ls min.lg max.ls min.lg max.
2019,5820,42-5,25            
2524,5825,42-5,25            
3029,5830,42-5,25-6-6        
3534,535,5-5,25-6-6        
4039,540,5-5,25-6-6-7,5-7,5    
4544,545,5-5,25-6-6-7,5-7,5    
5049,550,511,2520-6-6-7,5-7,5-7,5-9
-5554,455,616,25251121-6-7,5-7,5-7,5-9
6059,460,621,253016261222-7,5-7,5-7,5-9
7069,470,631,25402636223215,52811,524-7,5-9
8079,480,641,25503646324225,53821,53417,530-9
9089,390,7      35,54831,54427,5402136
10099,3100,7      45,55841,55437,5503146
4544,545,5        16,752311,519  
5049,550,5        21,752816,524  
-5554,455,6        26,753321,529  
6059,460,6        31,753826,534  
7069,470,6          36,544 

DIN 6912 - Cap Screws Thin Cylindrical Head

Thread dM4M5M6M8M10M12(M14)M16(M18)M20(M22)M24(M27)M30(M33)M36
P0,70,811,251,51,75222,52,52,5333,53,54
bof 125mm or less14161822263034384246505460667278
above 125mm up to 200mm----323640444852566066727884
exceeding 200mm-------576165697379859197
dkNominal size - max.78,51013161821242730333640455054
Min.6,788,289,7812,7315,7317,7320,6723,6726,6729,6732,6165,6139,6144,6149,6153,54
daMax.4,75,76,89,211,213,715,717,720,222,424,426,430,433,436,439,4
dhNominal size - min.22,53456788101012121516,518
Max.2,062,563,064,0755,0756,0757,098,098,0910,0910,0912,1112,1115,1116,6118,11
dsNominal size - max.4568101214161820222427303336
Min.3,824,825,827,789,7811,7313,7315,7317,7319,6721,6723,6726,6729,6732,6165,61
dwMin.6,27,79,212,0315,0317,0319,8322,8325,8328,8331,6134,6138,6143,6148,6152,34
eMin.3,444,585,726,869,1511,4313,72161619,4419,4421,7321,7325,1527,4330,85
lfMax.0,60,60,681,021,021,451,451,451,872,042,042,042,892,892,892,89
kNominal size - max.2,83,5456,57,58,510111213141617,519,521,5
Min.2,663,323,824,826,287,288,289,7810,7311,7312,7313,7315,7317,2319,1721,17
rMin.0,20,20,250,40,40,60,60,60,60,80,80,81111
sNominal size345681012141417171919222427
Min.3,024,025,026,028,02510,02512,03214,03214,03217,0517,0519,06519,06522,06524,06527,065
Max.3,14,125,146,148,17510,17512,21214,21214,21217,2317,2319,27519,27522,27524,27527,275
t1Nominal size1,622,533,544,55,566,5778,591011,5
Min.1,481,882,382,883,353,854,355,355,856,326,826,828,328,829,8211,28
Max.1,722,122,623,123,654,154,655,656,156,687,187,188,689,1810,1811,72
t2Min.3,3456,57,591011,512,514151617192024
Max.3,64,35,36,867,869,3610,3611,9312,9314,4315,4316,4317,4319,5220,5224,52
vMax.0,40,50,60,811,21,41,61,822,22,42,733,33,6
Thread dM4M5M6M8M10M12M14M16M18M20M22M24M27M30M33M36
llslglslglslglslglslglslglslglslglslglslglslglslglslglslglslglslg
Nominal sizeMin.Max.Min.Max.Min.Max.Min.Max.Min.Max.Min.Max.Min.Max.Min.Max.Min.Max.Min.Max.Min.Max.Min.Max.Min.Max.Min.Max.Min.Max.Min.Max.Min.Max.
109,7110,291,43,51,84,22,55,5                          
1211,6512,351,43,51,84,22,55,53,27                        
1615,6516,351,43,51,84,22,55,53,273,584,29,5                    
2019,5820,422,561,84,22,55,53,273,584,29,54,510,5511                
2524,5825,427,511592,55,53,273,584,29,54,510,55115,513              
3029,5830,4212,51610147123,273,584,29,54,510,55115,5136,514            
3534,535,517,521151912176,75133,584,29,54,510,55115,5136,514            
4039,540,522,5262024172211,75186,5144,29,54,510,55115,5136,5146,514          
5049,550,532,5363034273221,752816,52411,5204,510,55115,5136,5146,514          
6059,460,6  4044374231,753826,53421,530162612225,5136,5146,514716        
7069,470,6    475241,754836,54431,5402636223215,52811,5246,5147168178,519    
8079,480,6      51,755846,55441,5503646324225,53821,53417,5307168178,5199,520  
9089,390,7        56,56451,5604656425235,54831,54427,54021368178,5199,52010,522,5
10099,3100,7          61,5705666526245,55841,55437,550314625408,5199,52010,522,5
-110109,3110,7            6676627255,56851,56447,5604156355026,5449,52010,522,5
120119,3120,7            7686728265,57861,57457,5705166456036,55430,54810,522,5
-130129,2130,8              768669,58265,57861,5745570496440,55834,5522646
140139,2140,8              869679,59275,58871,5846580597450,56844,5623656
-150149,2150,8                89,510285,59881,5947590698460,57854,5724666
160159,2160,8                  95,510891,510485100799470,58864,5825676
-170169,2170,8                  105,5118101,5114951108910480,59874,5926686
180179,2180,8                  115,5128111,51241051209911490,510884,81027696
-190189,1190,9                    121,5134115130109124100,511894,511286106
200199,1200,9                    131,5144125140119134110,5128104,512296116

ASME B18.3- Low Head Socket Head Cap Screw

ASME B18.3-low head Dimensions
Nominal Size (Basic Screw Diameter) [Note (1)]Body DiameterHead DiameterHead HeightMaximum Chamfer or RadiusHexagon Socket Size Key EngagementChamfer or Radius
  D [Note (2)]A [Note (3)]HC [Note (4)]JTK
  MaxMinMaxMinMaxMinMaxNomMinMax
40.1120.1120.10750.1830.1780.0590.0530.009-0.050.0380.008
50.1250.1250.12020.2050.20.0650.0590.0121/160.0620.0440.008
60.1380.1380.13290.2260.2210.0720.0660.0131/160.0620.050.008
80.1640.1640.15850.270.2650.0850.0790.0145/640.0780.060.008
100.190.190.1840.3120.3070.0980.0920.0183/320.0940.0720.008
1/40.250.250.24350.3750.3690.1270.1210.0251/80.1250.0940.01
5/160.31250.31250.30530.4370.4310.1580.1520.0335/320.1560.110.01
3/80.3750.3750.36780.5620.5560.1920.1820.043/160.1880.1150.01
7/160.43750.43750.42940.6250.6180.2230.2130.0477/320.2190.1350.015
1/20.50.50.49190.750.7430.2540.2440.0551/40.250.1510.015
5/80.6250.6250.61630.8750.8670.3160.3060.075/160.3120.250.015

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