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Metric Hex Cap Screws, Class 8.8, Zinc Plated Steel, M18-2.5 x 70M FT

Diameter - Thread Pitch: M18-2.5
  • Hex head for standard wrench or socket installation
  • Class 8.8 medium-strength steel – approximately 800 MPa tensile strength
  • Known as a hex cap screw, hex bolt, or hex head bolt
  • Zinc plated finish – RoHS compliant corrosion protection
  • M18 x 2.5mm coarse thread pitch – multiple lengths available

Manufactured from Class 8.8 steel, this M18 x 2.5mm hex cap screw provides dependable clamping force for mid-range structural and heavy equipment applications. Class 8.8 delivers approximately 800 MPa tensile strength and serves as the metric equivalent to SAE Grade 5, meeting the load requirements of most industrial, automotive, agricultural, and construction joints without the premium cost of Class 10.9 or 12.9 grades. The hex head accepts standard wrenches and sockets for efficient installation and consistent torque application. A zinc plated finish provides RoHS compliant corrosion protection that extends service life in indoor and sheltered outdoor environments while maintaining a uniform, professional appearance.

A Hex Bolt is measured as: Diameter - Thread Pitch x Length from Under Head
FT = Full Thread
PT = Partial Thread

Product number: MHBZP881870
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Click on a size/sku in the table to view product-specific details and specifications.
FT = Full Thread (threaded the entire length)  ·  PT = Partial Thread (unthreaded shoulder below the head)

Specifications

  • Across Flats (Width): 27mm (Max 27.00mm – Min 26.67mm)
  • Additional Sizing Info: FT = Full Thread, PT = Partial Thread
  • Class: 8.8
  • Color: Silver
  • Diameter: M18
  • Drive Style: External Hex
  • Head Type: Hex Head
  • Thread Direction: Right Hand
  • Thread Type: Coarse
  • Finish: Zinc Plated
  • Fit: 6g
  • FT = Full Thread: Yes
  • Head Height: Max 11.72 – Min 11.28
  • Head Height Basic: 11.5mm
  • Head Style: Hex
  • Length: 70mm
  • Material: Steel
  • Product Type: Metric Hex Cap Screw
  • System of Measurement: Metric
  • Thread Direction: Right Hand
  • Thread Pitch: 2.00 mm
  • Thread Size: M18-2.5
  • Thread Standard: UNC
  • Thread Type: Coarse
  • Tolerance (IFI): Actual measurements may vary slightly +/- depending on production run within IFI Tolerances
  • Wrench Size: 27mm

Frequently Used With

MRO Solution 2400, Marine Grade Anti-Seize Lubricant, 8 oz. MRO Solution 2400, Marine Grade Anti-Seize Lubricant, 8 oz.
Volume Pricing*
$20.03 ea.
$0.00
Metric Nylon Lock Nuts, Zinc Plated Steel, Class 8, M18 x 2.5 Metric Nylon Lock Nuts, Zinc Plated Steel, Class 8, M18 x 2.5
Volume Pricing*
1
$1.06
($1.06/ea)
100
$74.00
($0.74/ea)
1000
$620.00
($0.62/ea)
$0.00
Metric Finish Hex Nuts, Class 8 Zinc Plated Steel, M18 x 2.5 Metric Finish Hex Nuts, Class 8 Zinc Plated Steel, M18 x 2.5
Volume Pricing*
1
$0.49
($0.49/ea)
100
$37.00
($0.37/ea)
1000
$330.00
($0.33/ea)
$0.00
Metric Finish Hex Nuts, Class 10 Zinc Plated Steel, M18-2.50 Metric Finish Hex Nuts, Class 10 Zinc Plated Steel, M18-2.50
Volume Pricing*
1
$1.09
($1.09/ea)
100
$72.00
($0.72/ea)
1000
$640.00
($0.64/ea)
$0.00
Metric Lock Washers, Split Ring, Zinc Plated Steel, M18 Metric Lock Washers, Split Ring, Zinc Plated Steel, M18
Volume Pricing*
1
$0.44
($0.44/ea)
100
$27.00
($0.27/ea)
1000
$230.00
($0.23/ea)
$0.00
Select Size/SKU & Quantity
13 Available Sizes
SIZE/SKU Review Volume Pricing* Enter Any Qty
M18-2.5 x 100M FT
MHBZP8818100
1
$3.72 ($3.72/ea)
100
$337.00 ($3.37/ea)
1000
$3,060.00 ($3.06/ea)
$0.00
M18-2.5 x 110M PT
MHBZP8818110
1
$5.86 ($5.86/ea)
100
$536.00 ($5.36/ea)
1000
$4,880.00 ($4.88/ea)
$0.00
M18-2.5 x 120M FT
MHBZP8818120
1
$6.31 ($6.31/ea)
100
$578.00 ($5.78/ea)
1000
$5,260.00 ($5.26/ea)
$0.00
M18-2.5 x 130M PT
MHBZP8818130
1
$6.83 ($6.83/ea)
100
$626.00 ($6.26/ea)
1000
$5,690.00 ($5.69/ea)
$0.00
M18-2.5 x 140M PT
MHBZP8818140
1
$7.29 ($7.29/ea)
100
$668.00 ($6.68/ea)
1000
$6,070.00 ($6.07/ea)
$0.00
M18-2.5 x 150M PT
MHBZP8818150
1
$8.16 ($8.16/ea)
100
$748.00 ($7.48/ea)
1000
$6,800.00 ($6.80/ea)
$0.00
M18-2.5 x 160M PT
MHBZP8818160
1
$5.63 ($5.63/ea)
100
$511.00 ($5.11/ea)
1000
$4,650.00 ($4.65/ea)
$0.00
M18-2.5 x 180M PT
MHBZP8818180
1
$5.99 ($5.99/ea)
100
$545.00 ($5.45/ea)
1000
$4,950.00 ($4.95/ea)
$0.00
M18-2.5 x 65M FT
MHBZP881865
1
$4.37 ($4.37/ea)
100
$401.00 ($4.01/ea)
1000
$3,650.00 ($3.65/ea)
$0.00
M18-2.5 x 70M FT
MHBZP881870
1
$2.76 ($2.76/ea)
100
$249.00 ($2.49/ea)
1000
$2,260.00 ($2.26/ea)
$0.00
M18-2.5 x 75M FT
MHBZP881875
1
$4.51 ($4.51/ea)
100
$414.00 ($4.14/ea)
1000
$3,760.00 ($3.76/ea)
$0.00
M18-2.5 x 80M FT
MHBZP881880
1
$3.04 ($3.04/ea)
100
$274.00 ($2.74/ea)
1000
$2,500.00 ($2.50/ea)
$0.00
M18-2.5 x 90M FT
MHBZP881890
1
$4.84 ($4.84/ea)
100
$443.00 ($4.43/ea)
1000
$4,030.00 ($4.03/ea)
$0.00

*Volume pricing available on select products. Products without quantity breaks are priced per unit.

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