Direct Fastening Technical Guide , Edition 24
3.6.5.3 TECHNICAL DATA
Selection guide
hex washer head
Description Size Length ( L )
S-MD 10-16 x 3 / 4 " HWH # 2 BM Kwik-Flex 10-16 3 / 4 "
Drive recess
Drill point size
Maximum drilling capacity ( DC )
Maximum total thickness 1 ( MT )
2 0.110 " 0.320 "
S-MD 12-14 x 1 " HWH # 3 BM Kwik-Flex |
|
1 " |
|
|
|
0.500 " |
S-MD 12-14 x 1-1 / 2 " HWH # 3 BM Kwik-Flex |
12-14 |
1-1 / 2 " |
5 / 16 " hex |
3 |
0.210 " |
1.00 " |
S-MD 12-14 x 2-1 / 2 " HWH # 3 BM Kwik-Flex |
|
2-1 / 2 " |
|
|
|
2.00 " |
S-MD 12-24 x 2 " HWH # 5 BM Kwik-Flex 12-24 2 " 5 0.500 " 1.100 " S-MD 14-20 x 1 " HWH # 3 BM Kwik-Flex
1 " S-MD 14-20 x 1-1 / 2 " HWH # 3 BM Kwik-Flex 1-1 / 2 " 1.00 "
|
S-MD 14-20 x 2 " HWH # 3 BM Kwik-Flex
S-MD 14-20 x 2-1 / 2 " HWH # 3 BM Kwik-Flex
|
1 / 4-20 |
2 "
2-1 / 2 "
|
3 / 8 " hex |
3 |
0.312 " |
1.500 "
2.00 "
|
S-MD 14-20 x 3 " HWH # 3 BM Kwik-Flex |
|
3 " |
|
|
|
2.50 " |
S-MD 14-20 x 4 " HWH # 3 BM Kwik-Flex 4 " 3.50 "
S-MD 14-20 x 2 " HWH # 5 BM Kwik-Flex 2 " 5 0.500 " 1.100 " Flat head reamers w / wings
Flat head undercut
S-WW 10-16 x 1-1 / 2 " PFH # 3 BM Kwik-Flex 10-16 1-1 / 2 "
# 2 phillips
0.500 "
3 0.140 " 0.800 "
S-WW 12-24 x 2-13 / 16 " PFH # 5 BM Kwik-Flex 12-24 2-13 / 16 " 1.710 "
# 3 5 0.500 " phillips S-WW 14-20 x 2-13 / 16 " PFH # 5 BM Kwik-Flex 1 / 4-20 2-13 / 16 " 1.710 "
S-WD 12-14 x 1 " PFHUC # 3 BM Kwik-Flex 12-14
1 "
S-WD 12-14 x 1-1 / 2 " PFHUC # 3 BM Kwik-Flex 1-1 / 2 " 1.00 " # 3 phillips
S-WD 1 / 4 - 20 x 3 " PFHUC # 2 BM Kwik-Flex 3 "
2.500 "
1 / 4-20
3 0.140 "
2 0.210 " S-WD 1 / 4 - 20 x4 " PFHUC # 2 BM Kwik-Flex 4 " 3.500 "
1 Maximum total thickness ( MT ) describes the maximum thickness of all attachments plus the base material thickness and is the load-bearing length of 300 series stainless under the hex head or including the flat head . Hardened carbon steel length ( lead threads and point ) should be completely through the base material and not in the load bearing section of the connection .
0.500 "
Ultimate tensile strengths — pullout ( tension ) 1 , 3 Ultimate fastener strength of screw 1 , 2 , 3
Screw size
Drill point type
Drill cap ( in .)
1 All performance data shown is based on tests performed under laboratory conditions at independent construction testing facilities . The appropriate safety factor should be applied and code requirements factored into specification and use of these fasteners . A safety factor of 4:1 or 25 % of the ultimate average values shown is generally accepted as an appropriate allowable load . Final determination of the appropriate safety factor and use of these fasteners is the sole responsibility of the person designing the connection . For additional product information and technical assistance , please contact Hilti directly at 1-877-749-6337 .
2 Values are for 300 series stainless fastener threaded shank .
Steel HRB = 60-75
F u
= 50 – 66 ksi
Pullout ( lb )
Aluminum 6063-T5 22 ksi
18 ga . 16 ga . 14 ga . 12 ga . 1 / 8 " 3 / 16 " 1 / 4 " 1 / 8 " 1 / 4 "
10-16 2 0.150 455 677 793 1394 1906 − − 994 − 10-16 3 0.187 − 616 684 1242 1605 1527 − 961 − 12-14 2 0.187 528 750 892 1536 2602 2514 − 1132 − 12-14 3 0.210 417 679 802 1371 2028 2499 − 974 − 12-24 5 0.500 − − − − − 2110 2781 538 1995 1 / 4-20 3 0.312 − 680 780 1442 2623 3684 4069 1037 2786 1 / 4-20 5 0.500 − − − − − − 2622 − 1724
3 The lower of the ultimate pullout and tensile fastener strength of screw should be used for design . Pullover or shear bearing capacity of the material being fastened must be independently evaluated .
Size
Tensile ( lb )
Shear ( lb )
10-16 1847 1282 12-14 2628 1950 12-24 2734 2284 1 / 4-20 4124 2860
231