Prime-Line 9055857 Hex Lag Screws, 5/16 inch X 4 inch, A307 Grade A Hot Dip Galvanized Steel, (15-pack) 5/16 in. -18

Brand:PRIME-LINE

3.4/5

43.53

Lag screw bolts are used in place of standard wood screws whenever the mounting surface must bear a heavy load. The hex head allows for lag screws to be tightened with more torque than can be used on Phillips head screws, though a pilot hole is still required prior to installation. Note that lag screws do not accept nuts as they are technically thick heavy duty wood screws with threads designed to cut into wood. They are ideal for use on decks since installation can be accomplished without having access to both ends of the fastener, as opposed to standard hex bolts that require a nut on the opposite end.

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Thread Type: Deep, Point Style: Gimlet. Requires pilot hole to be drilled and installs using wrench or socket tool. Used in applications where standard wood screws cannot support the load (deck building, etc.). Features deep wood screw threads and does not accept a nut. Heavy duty wood screw with 6 sided hex bolt head. Size: 5/16 inch X 4 inch.
Assembled Diameter ‎0.31 Inches
Batteries Required? ‎No
Brand PRIME-LINE
Color Zinc
Color ‎Zinc
Customer Reviews 4.3 4.3 out of 5 stars 49 ratings 4.3 out of 5 stars
Cutting Diameter ‎0.31 Inches
Finish ‎Hot-Dipped Galvanized
Head Style ‎Hex
Included Components ‎Lag Screw Bolt
Item Dimensions LxWxH 4 x 4 x 4 inches
Item model number ‎9055857
Item Package Quantity ‎1
Item Weight ‎1.06 pounds
Manufacturer ‎Prime-Line
Material Steel
Material ‎Steel
Measurement System ‎Inch
Number Of Pieces ‎15
Part Number ‎9055857
Product Dimensions ‎4 x 4 x 4 inches
Shape ‎Bear
Size 5/16 in. -18
Size ‎5/16 in. -18
Tool Tip Description ‎Hex
Usage ‎Wood

3.4

4 Review
5 Star
67
4 Star
15
3 Star
7
2 Star
5
1 Star
5

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Scritto da: james j dillabough
Just what I was looking for.
I like they worked for the job.
Scritto da: BC Atkins
completely satisfied
Bolts were as described. would buy again
Scritto da: Amazon Customer
Bolt head twists off
With very little torque these lag bolt heads will twist off, seems like very cheap steel.
Scritto da: E
Very soft metal, bolt snapped with very little torque
No indication what grade or class these bolts are - that should be a red flag. I was tightening one with a small ratchet when it practically melted where the threads start. I do not recommend.

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