Table 1 — Material Properties
Carbon Steel Stainless Steel
Property
Fastener Diameter ( inches ) Fastener Diameter ( inches )
3 / 16 1 / 4 3 / 16 1 / 4 Minimum Tensile Strength ( ksi ) 150 130 Minimum Yield Strength ( ksi ) 120 105 Coating Zinc with organic top coat N / A
Figure 1 — Flathead KWIK CON + Head Angle
Table 2 — Physical Dimensions
Characteristic
Nominal anchor diameter ( inches ) 3 / 16 1 / 4
Head Style |
Tapered Flat Head |
Tapered Flat Head |
5 / 16-in . Hex Washer |
Tapered Flat Head |
Tapered Flat Head |
5 / 16-in . Hex Washer |
Internal recess |
# 3 Phillips |
T-25 TORX |
T-25 TORX |
# 3 Phillips |
T-27 TORX |
T-25 TORX |
Maximum Head Diameter ( inches ) |
0.507 |
0.385 |
0.433 |
0.507 |
0.507 |
0.433 |
Major Thread Diameter ( inches ) |
|
0.217 |
|
|
0.283 |
|
Minor Diameter ( inches ) |
|
0.145 |
|
|
0.190 |
|
Shank Diameter ( inches ) |
|
0.170 |
|
|
0.224 |
|
INSTALLATION
Table 3 — KWIK CON + Installation Specifications
Setting information Symbol
Nominal anchor diameter ( inches ) 3 / 16 1 / 4
Embedment ( inches ) |
h nom
|
1 |
1-3 / 4 |
1 |
1-3 / 4 |
Nominal drill bit diameter ( inches ) 1
|
d bit
|
3 / 16 |
1 / 4 |
Minimum fixture hole diameter ( inches ) |
d h
|
1 / 4 |
5 / 16 |
Minimum hole depth ( inches ) |
h o
|
1-1 / 4 |
2 |
1-1 / 4 |
2 |
Minimum member thickness ( inches ) |
h min
|
2-1 / 2 |
3-1 / 4 |
2-1 / 2 |
3-1 / 4 |
Minimum anchor spacing ( inches ) |
s min
|
2-1 / 4 |
2-1 / 2 |
Critical anchor spacing ( inches ) |
s cr
|
3 |
4 |
3 |
4 |
Minimum edge distance ( inches ) |
c min
|
1-1 / 8 |
1-1 / 2 |
Critical edge distance ( inches ) |
c cr
|
2-1 / 2 |
3-1 / 2 |
2-1 / 2 |
3-1 / 2 |
1 Requires matched tolerance drill bit from Hilti , TKC drill bits for concrete , TKB drill bits for other materials . |
Table 4 — Load adjustment factors for Hilti KWIK CON + screw anchors in concrete
Load adjustment factors for anchor spacing ƒ A
Load adjustment factors for edge distance ƒ R Tension / Shear loads Tension Shear
Embedment ( inches ) 1 1-3 / 4 1 1-3 / 4 Embedment ( inches ) 1 1-3 / 4 1 1-3 / 4 1 1-3 / 4 1 1-3 / 4 Spacing ( s ) Anchor diameter Edge Distance Anchor Diameter Anchor Diameter in . ( mm ) 3 / 16 1 / 4 in . ( mm ) 3 / 16 1 / 4 3 / 16 1 / 4
2-1 / 4 ( 57 ) 0.80 0.80 1-1 / 8 ( 29 ) 0.80 0.80 0.30 0.30 2-1 / 2 ( 64 ) 0.87 0.83 0.80 0.80 1-1 / 4 ( 32 ) 0.82 0.81 0.36 0.34 2-3 / 4 ( 70 ) 0.93 0.86 0.90 0.86 1-1 / 2 ( 38 ) 0.85 0.83 0.80 0.80 0.49 0.41 0.30 0.30
3 ( 76 ) 1.00 0.89 1.00 0.89 1-3 / 4 ( 44 ) 0.89 0.85 0.85 0.83 0.62 0.48 0.48 0.39 3-1 / 4 ( 83 ) 0.91 0.91 2 ( 51 ) 0.93 0.87 0.90 0.85 0.75 0.56 0.65 0.48 3-1 / 2 ( 89 ) 0.94 0.94 2-1 / 4 ( 57 ) 0.96 0.89 0.95 0.88 0.87 0.63 0.83 0.56 3-3 / 4 ( 95 ) 0.97 0.97 2-1 / 2 ( 64 ) 1.00 0.92 1.00 0.90 1.00 0.71 1.00 0.65
4 ( 102 ) 1.00 1.00 3 ( 76 ) 0.96 0.95 0.85 0.83
1 Reduction factors are multiplicative and linear interpolation between s cr and s min
, c cr and c min is permitted .
3-1 / 2 ( 89 ) 1.00 1.00 1.00 1.00
484 Anchor Fastening Technical Guide Edition 22 | 3.0 ANCHORING SYSTEMS | 3.3.19 KWIK-CON + CONCRETE AND MASONRY SCREW Hilti , Inc . 1-800-879-8000 | en español 1-800-879-5000 | www . hilti . com | Hilti ( Canada ) Corporation | www . hilti . ca | 1-800-363-4458