Hex Lag Screws
Lag Screws (or lag bolts) are an ideal fastener when wood screws are too short or lightweight for the job, offering increased gripping power over wood screws. These screws can also be used in masonry applications with an expansion shield. Available in zinc plated steel and 18-8 stainless steel. Stocked in diameters from 1/4" to 5/8" and lengths from 1" to 8". Length is measured from under the head.
Group codes represented: HLS, SSHLS
Part# examples: 25100HLS
E |
F |
G |
H |
S |
|||||||||
Basic Product Diameter |
Threads Per Inch |
Body Or Shoulder Diameter |
Width Across Flats |
Width Across Corners |
Head Height |
Shoulder Length |
|||||||
Max |
Min |
Basic |
Max |
Min |
Max |
Min |
Basic |
Max |
Min |
Min |
|||
| 1/4 |
0.2500 |
10 |
0.026 |
0.237 |
7/16 |
0.438 |
0.425 |
0.505 |
0.484 |
11/64 |
0.188 |
0.150 |
0.094 |
| 5/16 |
0.3125 |
9 |
0.324 |
0.298 |
1/2 |
0.500 |
0.484 |
0.577 |
0.552 |
7/32 |
0.235 |
0.195 |
0.125 |
| 3/8 |
0.3750 |
7 |
0.388 |
0.360 |
9/16 |
0.562 |
0.544 |
0.650 |
0.620 |
1/4 |
0.268 |
0.226 |
0.125 |
| 7/16 |
0.4375 |
7 |
0.452 |
0.421 |
5/8 |
0.625 |
0.603 |
0.722 |
0.687 |
19/64 |
0.316 |
0.272 |
0.156 |
| 1/2 |
0.5000 |
6 |
0.515 |
0.482 |
3/4 |
0.750 |
0.725 |
0.866 |
0.826 |
11/32 |
0.364 |
0.302 |
0.156 |
| 5/8 |
0.6250 |
5 |
0.642 |
0.605 |
15/16 |
0.938 |
0.906 |
1.083 |
1.033 |
27/64 |
0.444 |
0.378 |
0.312 |
| 3/4 |
0.7500 |
4 1/2 |
0.768 |
0.729 |
1 1/8 |
1.125 |
1.088 |
1.299 |
1.240 |
1/2 |
0.524 |
0.455 |
0.375 |
| Tolerance on Length | Nominal Screw Size | Nominal Screw Length | |
| Thru 6 in. | Over 6 in. | ||
| 1/2 and smaller | +/-0.12 | +/-0.25 | |
| Over 1/2 | +/-0.25 | +/-0.25 | |
