Lag/Drive Screws
All MPS Lag Screws have rolled threads. Below the head is an upset shoulder with the same outside diameter as the threads to provide a snug fit in hardware mounting holes.
Fast Lags (FX) are easily installed using power tools and able to replace all the below traditional lags. Fast Lag Screw Informational Flyer
Gimlet point Lag Screws are installed with a wrench.
Fetter drive and twist drive lag screws can either be wrenched or driven like a nail for speedier installation without sacrificing any of the holding strength of regular gimlet point lag threads.
Twist drive lags are furnished with a drive point for additional starting ease and accuracy. This feature is also available on most sizes of Fetter Drive lags.
Material: Hot Dip Galvanized Steel
Square head lag screws conform to Bellcore specification 6337
Fetter Drive - Drive Point
Catalog Number
Size (in.)
Thread Length T (Inches)
Standard Pack Quantity
Carton Weight (Lbs.)
J8743P
3/8x3
2
500
46
Array
J8744P
3/8x4
2-1/2
250
33
Array
J8753P
1/2x3
2-1/4
250
44
Array
J8754-1/2P
1/2x4-1/2
2-5/8
200
48
Array
J8754P
1/2 x 4
2-5/8
200
57
Array
J8756P
1/2 X 6
3
200
63
Array
SI-0031
3/8 x 4
2-1/2
400
48
Array
SI-0034
5/8 x 6
3-1/2
100
60
Array
SI-0036
1/2 x 4
2-1/2
200
42
Array
SI-6226
3/8 x 3
2-1/2
500
44
Array
SI-6241
1/2 x 4-1/2
3-1/2
200
47
Array
Hex Head, Gimlet Point
Catalog Number
Size (in.)
Inner Pack Quantity
Standard Pack Quantity
Carton Weight (Lbs.)
J8732
5/16x2
1000
41
SI-6039
5/16 x 11/2
100
1000
40
SI-6039A
5/16 x 11/2
100
1000
40
SI-6040
5/16 x 2
100
600
25
SI-6040A
5/16 x 2
100
600
25
SI-6041
5/16 x 3
100
600
34
SI-6041A
5/16 x 3
100
600
34
SI-6056A
5/16 x 2-1/2
100
600
34
Twist Drive - Drive Point
Catalog Number
Size (in.)
Thread Length T (Inches)
Standard Pack Quantity
Carton Weight (Lbs.)
J8753TP
1/2 x 3
2-1/4
250
44
Array
J8754TP
1/2 x 4
2-5/8
250
56
Array
SI-0032
1/2 x 4-1/2
2-3/4
200
48
Array
SI-0033
1/2 x 6-1/2
3-1/2
100
33
Array
Gimlet Point
Catalog Number
Size (in.)
Standard Pack Quantity
Carton Weight (Lbs.)
J8722
1/4 x 2
2000
52
J8722-1/2
1/4 x 2-1/2
1000
31
J8723
1/4x3
1000
41
J8773
3/8 x 3
500
31
SI-0039
5/16 x 3
1100
74
SI-0058
3/8 x 13/4
1000
75
SI-0059
3/8 x 11/2
1000
70
SI-6035
5/16 x 11/2
500
27
SI-6037
5/16 x 21/2
500
24
SI-6203
1/4 x 2
1000
52
SI-6204
1/4 x 21/2
1000
33
SI-6237
1/2 x 2
250
28
Fetter Drive Regular Point
Catalog Number
Size (in.)
Thread Length T (Inches)
Standard Pack Quantity
Carton Weight (Lbs.)
J8742-1/2
3/8 x 2-1/2
1-3/4
500
41
Array
J8743
3/8 x 3
2-1/4
500
46
Array
J8754
1/2 x 4
2-5/8
250
59
Array
J8754-1/2
1/2 x 4-1/2
2-5/8
200
53
Array
J8765
5/8 x 5
3-1/2
100
45
Array
SI-0029
1/4 x 2-1/2
1-3/4
1000
88
Array
SI-0030
5/16 x 3
1-7/8
800
52
Array
SI-6228
3/8 x 4
2-1/2
500
64
Array
SI-6229
3/8 x 3
2-1/2
600
53
Array
SI-6238
1/2 x 4
2-5/8
250
57
Array
Hex Head, Fetter Drive Regular Point
Catalog Number
Size (in.)
Thread Length T (Inches)
Standard Pack Quantity
Carton Weight (Lbs.)
J8652-1/2HH
1/4x2-1/2
1-3/4
1000
41
Array
J8652HH
1/4x2
1-1/2
1000
31
Array