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TRUSS HEAD MACHINE SCREWS
Standard: IFI I-26; IFI I-27
Material: Steel Brass Stainless Steel

 

 
 
IFI I-26(F-28)
SLOTTED TRUSS HEAD MACHINE SCREWS

Thread Size: 5-12,1/4-1/2in Length(L):1/2-4 in
Thread
Size
dk
k
L
5
0.289
0.078
1/2-2
6
0.321
0.086
1/2-2 1/2
8
0.384
0.102
1/2-2 1/2
10
0.448
0.118
5/8-2 1/2
12
0.511
0.134
3/4-4
1/4
0.573
0.150
7/8-4
5/16
0.698
0.783
1-4
3/8
0.823
0.215
1 1/4-4
7/16
0.948
0.248
1 1/4-4
1/2
1.073
0.280
1 1/4-4

 

 

IFI I-27(F-29)
CROSS RECESSED TRUSS HEAD MACHINE SCREWS

Thread Size: 5-12,1/4-1/2in Length(L):1/2-4 in

 

 
Thread Size

 
dk
k
Cross recess
L
(Type 1)m
(Type 1A)m
No.
5
0.289
0.078
0.115
0.111
1
1/2-2
6
0.321
0.086
0.145
0.135
2
1/2-2 1/2
8
0.384
0.102
0.160
0.149
2
1/2-2 1/2
10
0.448
0.118
0.175
0.165
2
5/8-2 1/2
12
0.511
0.134
0.235
0.221
3
3/4-4
1/4
0.573
0.150
0.250
0.235
3
7/8-4
5/16
0.698
0.183
0.339
0.320
4
1-4
3/8
0.823
0.215
0.370
0.351
4
1 1/4-4
7/16
0.948
0.248
0.401
0.381
4
1 1/4-4
1/2
1.073
0.280
0.431
0.409
4
1 1/4-4

 

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