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Popular Support Pages-> Wood Screws Types Threaded Insert and T-Nut Guide Wood Screw Size Chart PILOT HOLE SIZE CHART

Extra Long and Structural Screws

Log home builders first used this innovative fastener to anchor one log to the next...  Read More

Extra Long and Structural Screws

Extra Long and Structural Screws

Log home builders first used this innovative fastener to anchor one log to the next. Deck builders, landscapers, contractors and others needing an easy-driving, heavy-duty fastener have adopted it as their own. Extra-deep threads maximize holding power in softwoods, and the large heads provide plenty of clamping force. Select a screw that is approximately 2 in. longer than the thickness of the material you are fastening through for best results.

Extra-Long Screws

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  1. 14 x 6 in. Big T Exterior Multi-Purpose Wood Screws, T-30 SKU: 1460-BTX

    Starting at $24.95

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  2. 14 x 7 in. Big T Exterior Multi-Purpose Wood Screws, T-30 SKU: 1470-BTX

    Starting at $27.95

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  3. 14 x 8 in. Big T Exterior Multi-Purpose Wood Screws, T-30 SKU: 1480-BTX

    Starting at $32.95

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  4. 17 x 6 in. Big Timber Construction Lag Screw, T-40, Washer Head SKU: 1760-CTX

    Starting at $66.52

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  5. 17 x7 in. Big T Construction Lag Screw, T-40, Washer Head SKU: 1770-CTX

    Starting at $79.69

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  6. 17 x 8 in. Big T Construction Lag Screw, T-40, Washer Head SKU: 1780-CTX

    Starting at $98.55

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  7. 17 x 10 in. Big T Construction Lag Screw, T-40, Washer Head SKU: 17100-CTX

    Starting at $160.61

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  8. 17 x 12 in. Big T Construction Lag Screw, T-40, Washer Head SKU: 17120-CTX

    Starting at $191.41

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  9. 17 x 14 in. Big T Construction Lag Screw, T-40, Washer Head SKU: 17140-CTX

    Starting at $229.14

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  10. -25%
    12/14 x 6-3/8 in. GRK Flat Head screws- Qty:50 1060-BTX SKU: 1268-R4-L
    was $43.05 Special Price $32.29
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  11. -25%
    12/14 x 8 GRK Flat Head R4 Multi-Purpose, Climatek, Star, Nibs, Qty:50 SKU: 1288-R4-L
    was $96.08 Special Price $72.06
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  12. 1/4 SPAX Washer Head Exterior Lag, HCR, T-Star - Choose Your Length SKU: 25XX-LHW

    Starting at $21.56

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  13. 1/4 in. SPAX Washer Head Interior Lag, Yellow Zinc, T-Star - Choose Your Length SKU: 25XX-LYW

    Starting at $19.42

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  14. 1/4 in. SPAX Hex Head Interior Lag, Zinc, indoor - Choose Your Length SKU: 25XX-LZX

    Starting at $17.27

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  15. 1/4 in.-5/8 in. Fastenmaster Hex Washer Head, Ledgerlok, Hex - Choose Your Length SKU: HLL-14XX

    Starting at $61.03

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  16. 1/4 in. Fastenmaster Wafer Head Headlok, Extra Long, Spider - Choose Your Length SKU: TMR-40XX

    Starting at $41.22

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  17. 5/16 in. SPAX Hex Head Interior Lag, Zinc lag, - Choose Your Length SKU: 56XX-LZX

    Starting at $32.11

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  18. 5/16 in. SPAX Washer Head Interior Lag, Yellow Zinc, T-Star - Choose Your Length SKU: 56XX-LYW

    Starting at $28.97

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  19. 5/16 in. SPAX Washer Head Exterior Lag, HCR, - Choose Your Length SKU: 56XX-LHW

    Starting at $30.63

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  20. 5/16 Pancake Head Black E-Coat PowerLag, T-Star - Choose Your Length SKU: 56XX-LCS

    Starting at $158.92

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  21. 5/16 x 6 in. Hex Structural Washer-Head, 316 SS, Hex - Qty:10 SKU: TSS-1460-X
    $50.38
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  22. 5/16 x 5 in. Hex Structural Washer-Head, 316 SS, Hex - Qty:10 SKU: TSS-1450-X
    $34.18
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  23. 5/16 x 4 in. Hex Structural Washer-Head, 316 SS, Hex - Qty:100 SKU: TSS-1440-KK
    $165.69
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  24. 5/16 x 5 in. Hex Structural Washer-Head, 316 SS, Hex - Qty:100 SKU: TSS-1450-KK
    $264.93
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  25. 5/16 x 6 in. Hex Structural Washer-Head, 316 SS, Hex - Qty:100 SKU: TSS-1460-KK
    $295.05
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  26. 5/16 x 4 in. Hex Structural Washer-Head, 316 SS, Hex SKU: TSS-1440
    $5.35
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  27. 5/16 x 6 in. Hex Structural Washer-Head, 316 SS, Hex SKU: TSS-1460
    $9.20
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  28. 5/16 x 4 in. Hex Structural Washer-Head, 316 SS, Hex - Qty:10 SKU: TSS-1440-X
    $32.07
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  29. -25%
    5/16 x 5-1/8 in. GRK RSS Washer Head, 305 SS, Qty:40 SKU: 0555-SRS-L
    was $73.05 Special Price $54.79
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  30. 3/8 in. SPAX Washer Hex Head Exterior Lag, HCR - Choose Your Length SKU: 38XX-LHX

    Starting at $40.10

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  31. 3/8 SPAX Washer Head Exterior Lag, HCR, T-Star - Choose Your Length SKU: 38XX-LHW

    Starting at $41.44

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  32. 3/8 in. SPAX Washer Head Interior Lag, Yellow Zinc, T-Star - Choose Your Length SKU: 38XX-LYW

    Starting at $32.20

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  33. 3/8 in. SPAX Hex Head Interior Lag, Zinc, Hex - Choose Your Length SKU: 38XX-LZX

    Starting at $32.20

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  34. 1/2 in. SPAX Washer Hex Head Exterior Lag, HCR - Choose Your Length SKU: 50XX-LHX

    Starting at $44.43

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  35. 1/2 in. SPAX Hex Head Interior Lag, Zinc, Hex - Choose Your Length SKU: 50XX-LZX

    Starting at $42.49

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  36. 1/2 in. x 4 in. Hex Structural Washer-Head, 316 SS, Hex - MEL SKU: SDH-2704
    $5.90
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  37. 1/2 in. x 4 in. Hex Structural Washer-Head, 316 SS, Hex - Qty:100 SKU: SDH-2704-K
    $332.28
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  38. 8 in. Fastenmaster Hex Head ThruLOK, Galvanized SKU: FMTHR-008XX

    Starting at $39.85

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  39. 1/2 in. x 5 in. Hex Structural Washer-Head, 316 SS, Hex - MEL SKU: SDH-2705
    $7.05
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  40. 1/2 in. x 5 in. Hex Structural Washer-Head, 316 SS, Hex - Qty:50 SKU: SDH-2705-K
    $210.95
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  41. 1/2 in. x 6 in. Hex Structural Washer-Head, 316 SS, Hex - MEL SKU: SDH-2706
    $7.71
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  42. 1/2 in. x 6 in. Hex Structural Washer-Head, 316 SS, Hex - Qty:50 SKU: SDH-2706-K
    $230.95
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  43. 1/2 in. x 8 in. Hex Structural Washer-Head, 316 SS, Hex - MEL SKU: SDH-2708
    $13.51
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  44. 1/2 in. x 8 in. Hex Structural Washer-Head, 316 SS, Hex - Qty:25 SKU: SDH-2708-K
    $202.73
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  45. 1/2 in. x 10 in. Hex Structural Washer-Head, 316 SS, Hex - MEL SKU: SDH-2710
    $16.59
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  46. 1/2 in. x 12 in. Hex Structural Washer-Head, 316 SS, Hex - MEL SKU: SDH-2712
    $15.47
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  47. 1/2 in. x 12 in. Hex Structural Washer-Head, 316 SS, Hex - Qty:25 SKU: SDH-2712-K
    $283.93
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  48. 7 in. Fastenmaster Hex Head ThruLOK, Galvanized SKU: FMTHR-007XX

    Starting at $29.99

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  49. 6-1/4 in. Fastenmaster Hex Head ThruLOK, Galvanized SKU: FMTHR-614X

    Starting at $25.95

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  50. 1/4 in. x 8 in. Hex Structural Washer-Head, 316 SS, Hex - Qty:50 SKU: TSS-1480-KK
    $201.73
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SIZE (#8, #10 ...)
  1. #12 2items
  2. #14 13items
  3. #17 6items
  4. 1/4 in. 7items
  5. 1/2 in. 2items
  6. 0.276 in. 11items
  7. 5/16 in. 9items
  8. 3/8 in. 4items
  9. ThruLok 3items
HEAD
  1. Flat 5items
  2. Hex 14items
  3. Hex Washer 20items
  4. Over-sized Truss 1item
  5. Pan 1item
  6. Wafer 2items
  7. Washer 14items
LENGTH
  1. Assorted 9items
  2. 1-1/2 in. 1item
  3. 2 in. 1item
  4. 2-1/2 in. 2items
  5. 2-7/8 in. 1item
  6. 3 in. 6items
  7. 3-1/2 in. 3items
  8. 3-5/8 in. 1item
  9. 4 in. 12items
  10. 4-1/2 in. 6items
  11. 5 in. 15items
  12. 5-1/8 in. 1item
  13. 6 in. 19items
  14. 6-1/4 in. 1item
  15. 6-3/8 in. 1item
  16. 6-3/4 in. 1item
  17. 7 in. 9items
  18. 8 in. 16items
  19. 9 in. 2items
  20. 9-1/2 in. 1item
  21. 10 in. 10items
  22. 11 in. 1item
  23. 12 in. 7items
  24. 13 in. 1item
  25. 14 in. 2items
  26. 15 in. 2items
  27. 16 in. 1item
MATERIAL
  1. Aluminum 4items
  2. Corrosion Resistant Coated 20items
  3. Galvanized 3items
  4. Stainless Steel, 304 & 305 1item
  5. Stainless Steel, 316 20items
  6. Steel, Solid Carbon 1item
  7. Zinc, Clear 5items
  8. Zinc, Yellow 3items
RECESS TYPE
  1. Square 4items
  2. Star / Torx 21items
  3. No Recess 19items
  4. Spider 2items
COLOR CODE
Color
Birch 1 item
Black 8 items
Bronze 9 items
Brown 1 item
White 1 item
BRAND
  1. Big Timber 11items
  2. FastenMaster HeadLOK 2items
  3. FastenMaster LedgerLOK 1item
  4. FastenMaster ThruLOK 3items
  5. GRK 3items
  6. McFeely's 4items
  7. Simpson Strong-Tie 20items
  8. SPAX 13items
POINT TYPE
  1. Self Drilling Wood 22items
  2. Standard Wood 26items
  3. Type 17 9items
QUANTITY
  1. Assorted 15items
  2. Keg 19items
  3. (1) Each 10items
  4. 100-Box 5items
  5. 6-Pack 2items
  6. 25-Pack 3items
  7. 50-Pack 3items
  8. SML (1-50) 28items
  9. MED (51-150) 5items
  10. LG (151-500) 9items
  11. 100-Bucket 3items
  12. 25-Bucket 3items
  13. 50-Bucket 3items
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