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HomeFasteners & AnchorsHex boltsHex Bolt Grade 8 UNF Black Af8

Hex Bolt Grade 8 UNF Black Af8

Hex Bolt Grade 8 UNF Black Af8 in carbon steel, black, Grade 8, inch thread. 203 sizes available; sold per unit.

Price from
$ 157
Material
acero al carbono
Grade
Grado 8
Sizes
203
Hex Bolt Grade 8 UNF Black Af8
In stock acero al carbono negro Grado 8 pulgadas
Price from
$ 157 COP each
+ 19% VAT · per unit

01Sizes, prices and availability

SKUSizePriceStatusQty
VT-12876 1/4 X 1/2 $ 157 In stock
VT-12877 1/4 X 3/4 $ 210 In stock
VT-12878 1/4 X 1 $ 251 In stock
VT-12879 1/4 X 1.1/4 $ 324 In stock
VT-12880 1/4 X 1.1/2 $ 362 In stock
VT-12881 1/4 X 2 $ 515 In stock
VT-12882 1/4 X 2.1/2 $ 631 In stock
VT-12883 1/4 X 3 $ 802 In stock
VT-12884 1/4 X 3.1/2 $ 931 In stock
VT-12885 1/4 X 4 $ 1.062 In stock
VT-12886 1/4 X 4.1/2 $ 1.170 In stock
VT-12887 1/4 X 5 $ 2.269 In stock
VT-12889 1/4 X 6 $ 2.522 In stock
VT-12890 1/4 X 7 $ 2.546 In stock
VT-12891 1/4 X 8 $ 2.646 In stock
VT-12892 5/16 X 1/2 $ 200 In stock
VT-12893 5/16 X 3/4 $ 323 In stock
VT-12894 5/16 X 1 $ 355 In stock
VT-12895 5/16 X 1.1/4 $ 419 In stock
VT-12896 5/16 X 1.1/2 $ 452 In stock
VT-12897 5/16 X 2 $ 542 In stock
VT-12898 5/16 X 2.1/2 $ 677 In stock
VT-12899 5/16 X 3 $ 814 In stock
VT-12900 5/16 X 3.1/2 $ 1.005 In stock
VT-12901 5/16 X 4 $ 1.148 In stock
VT-12902 5/16 X 4.1/2 $ 1.290 In stock
VT-12903 5/16 X 5 $ 1.436 In stock
VT-12904 5/16 X 5.1/2 $ 1.575 In stock
VT-12905 5/16 X 6 $ 1.718 In stock
VT-12906 5/16 X 7 $ 2.155 In stock
VT-12907 5/16 X 8 $ 2.464 In stock
VT-12908 3/8 X 3/4 $ 407 In stock
VT-12909 3/8 X 1 $ 465 In stock
VT-12910 3/8 X 1.1/4 $ 617 In stock
VT-12911 3/8 X 1.1/2 $ 619 In stock
VT-12912 3/8 X 2 $ 754 In stock
VT-12913 3/8 X 2.1/2 $ 930 In stock
VT-12914 3/8 X 3 $ 1.123 In stock
VT-12915 3/8 X 3.1/2 $ 1.376 In stock
VT-12916 3/8 X 4 $ 1.568 In stock
VT-12917 3/8 X 4.1/2 $ 1.766 In stock
VT-12918 3/8 X 5 $ 2.138 In stock
VT-12919 3/8 X 5.1/2 $ 2.110 In stock
VT-12920 3/8 X 6 $ 2.357 In stock
VT-12921 3/8 X 7 $ 2.828 In stock
VT-12922 3/8 X 8 $ 3.233 In stock
VT-12923 7/16 X 1 $ 630 In stock
VT-12924 7/16 X 1.1/4 $ 690 In stock
VT-12925 7/16 X 1.1/2 $ 855 In stock
VT-12926 7/16 X 2 $ 1.142 In stock
VT-12927 7/16 X 2.1/2 $ 1.279 In stock
VT-12928 7/16 X 3 $ 1.536 In stock
VT-12929 7/16 X 3.1/2 $ 1.766 In stock
VT-12930 7/16 X 4 $ 2.206 In stock
VT-12931 7/16 X 4.1/2 $ 2.481 In stock
VT-12932 7/16 X 5 $ 2.758 In stock
VT-12933 7/16 X 5.1/2 $ 2.969 In stock
VT-12934 7/16 X 6 $ 3.222 In stock
VT-12935 7/16 X 7 $ 3.641 In stock
VT-12936 7/16 X 8 $ 4.161 In stock
VT-12937 1/2 X 3/4 $ 707 In stock
VT-12938 1/2 X 1 $ 920 In stock
VT-12939 1/2 X 1.1/4 $ 1.032 In stock
VT-12940 1/2 X 1.1/2 $ 1.117 In stock
VT-12941 1/2 X 2 $ 1.290 In stock
VT-12942 1/2 X 2.1/2 $ 1.708 In stock
VT-12943 1/2 X 3 $ 2.616 In stock
VT-12944 1/2 X 3.1/2 $ 2.738 In stock
VT-12945 1/2 X 4 $ 3.340 In stock
VT-12946 1/2 X 4.1/2 $ 3.706 In stock
VT-12947 1/2 X 5 $ 3.726 In stock
VT-12948 1/2 X 5.1/2 $ 4.316 In stock
VT-12949 1/2 X 6 $ 4.624 In stock
VT-12950 1/2 X 7 $ 5.512 In stock
VT-12951 1/2 X 8 $ 6.298 In stock
VT-12952 1/2 X 9 $ 7.082 In stock
VT-12953 1/2 X 10 $ 7.873 In stock
VT-12954 9/16 X 1 $ 1.073 In stock
VT-12955 9/16 X 1.1/4 $ 1.336 In stock
VT-12956 9/16 X 1.1/2 $ 1.601 In stock
VT-12957 9/16 X 2 $ 2.136 In stock
VT-12958 9/16 X 2.1/4 $ 2.398 In stock
VT-12959 9/16 X 2.1/2 $ 2.666 In stock
VT-12960 9/16 X 3 $ 3.200 In stock
VT-12961 9/16 X 3.1/2 $ 3.732 In stock
VT-12962 9/16 X 4 $ 4.265 In stock
VT-12963 9/16 X 4.1/2 $ 4.806 In stock
VT-12964 9/16 X 5 $ 5.338 In stock
VT-12965 9/16 X 5.1/2 $ 5.743 In stock
VT-12966 9/16 X 6 $ 6.264 In stock
VT-12967 9/16 X 6.1/2 $ 7.189 In stock
VT-12968 9/16 X 7 $ 7.740 In stock
VT-12969 9/16 X 8 $ 8.844 In stock
VT-12970 9/16 X 9 $ 9.947 In stock
VT-12971 9/16 X 10 $ 11.051 In stock
VT-12972 5/8 X 1 $ 1.425 In stock
VT-12973 5/8 X 1.1/4 $ 1.534 In stock
VT-12974 5/8 X 1.1/2 $ 2.267 In stock
VT-12975 5/8 X 2 $ 2.443 In stock
VT-12977 5/8 X 2.1/2 $ 3.013 In stock
VT-12978 5/8 X 3 $ 3.150 In stock
VT-12979 5/8 X 3.1/2 $ 3.679 In stock
VT-12980 5/8 X 4 $ 4.123 In stock
VT-12981 5/8 X 4.1/2 $ 5.564 In stock
VT-12982 5/8 X 5 $ 5.602 In stock
VT-12983 5/8 X 5.1/2 $ 6.896 In stock
VT-12984 5/8 X 6 $ 7.096 In stock
VT-12985 5/8 X 6.1/2 $ 7.140 In stock
VT-12986 5/8 X 7 $ 7.235 In stock
VT-12987 5/8 X 8 $ 7.917 In stock
VT-12988 5/8 X 9 $ 10.819 In stock
VT-12989 5/8 X 10 $ 12.022 In stock
VT-12990 5/8 X 11 $ 13.222 In stock
VT-12991 5/8 X 12 $ 14.580 In stock
VT-12992 5/8 X 14 $ 15.581 In stock
VT-12993 3/4 X 1.1/2 $ 2.764 In stock
VT-12994 3/4 X 2 $ 4.156 In stock
VT-12995 3/4 X 2.1/2 $ 4.775 In stock
VT-12996 3/4 X 3 $ 4.802 In stock
VT-12997 3/4 X 3.1/2 $ 6.130 In stock
VT-12998 3/4 X 4 $ 6.364 In stock
VT-12999 3/4 X 4.1/2 $ 7.820 In stock
VT-13000 3/4 X 5 $ 8.548 In stock
VT-13001 3/4 X 5.1/2 $ 9.898 In stock
VT-13002 3/4 X 6 $ 10.388 In stock
VT-13003 3/4 X 7 $ 10.904 In stock
VT-13004 3/4 X 8 $ 14.539 In stock
VT-13005 3/4 X 9 $ 15.337 In stock
VT-13006 3/4 X 10 $ 16.965 In stock
VT-13007 3/4 X 11 $ 18.662 In stock
VT-13008 3/4 X 12 $ 20.360 In stock
VT-13009 3/4 X 14 $ 23.752 In stock
VT-13010 7/8 X 1.1/2 $ 4.006 In stock
VT-13011 7/8 X 2 $ 5.594 In stock
VT-13012 7/8 X 2.1/2 $ 6.670 In stock
VT-13013 7/8 X 3 $ 8.002 In stock
VT-13014 7/8 X 3.1/2 $ 9.003 In stock
VT-13015 7/8 X 4 $ 9.958 In stock
VT-13016 7/8 X 4.1/2 $ 11.272 In stock
VT-13017 7/8 X 5 $ 12.129 In stock
VT-13019 7/8 X 6 $ 15.476 In stock
VT-13021 7/8 X 7 $ 19.416 In stock
VT-13022 7/8 X 8 $ 22.189 In stock
VT-13023 7/8 X 9 $ 24.960 In stock
VT-13024 7/8 X 10 $ 28.200 In stock
VT-13025 7/8 X 11 $ 31.024 In stock
VT-13026 7/8 X 12 $ 33.842 In stock
VT-13028 1 X 2 $ 7.283 In stock
VT-13029 1 X 2.1/4 $ 9.830 In stock
VT-13030 1 X 2.1/2 $ 10.013 In stock
VT-13031 1 X 3 $ 10.394 In stock
VT-13032 1 X 3.1/2 $ 12.746 In stock
VT-13033 1 X 4 $ 12.849 In stock
VT-13034 1 X 4.1/2 $ 13.825 In stock
VT-13035 1 X 5 $ 15.360 In stock
VT-13039 1 X 8 $ 23.585 In stock
VT-13040 1 X 9 $ 26.178 In stock
VT-13041 1 X 10 $ 26.527 In stock
VT-13042 1 X 11 $ 31.357 In stock
VT-13043 1 X 12 $ 33.944 In stock
VT-13044 1 X 14 $ 39.602 In stock
VT-13046 1.1/8 X 3 $ 21.252 In stock
VT-13047 1.1/8 X 3.1/2 $ 23.745 In stock
VT-13048 1.1/8 X 4 $ 26.238 In stock
VT-13049 1.1/8 X 4.1/2 $ 28.730 In stock
VT-13050 1.1/8 X 5 $ 29.648 In stock
VT-13051 1.1/8 X 5.1/2 $ 32.615 In stock
VT-13052 1.1/8 X 6 $ 35.575 In stock
VT-13053 1.1/8 X 7 $ 39.101 In stock
VT-13054 1.1/8 X 8 $ 44.684 In stock
VT-13055 1.1/8 X 9 $ 50.272 In stock
VT-13056 1.1/8 X 10 $ 55.857 In stock
VT-13057 1.1/8 X 11 $ 61.442 In stock
VT-13058 1.1/8 X 12 $ 67.030 In stock
VT-13059 1.1/8 X 14 $ 78.200 In stock
VT-13060 1.1/4 X 2.1/2 $ 16.926 In stock
VT-13061 1.1/4 X 3 $ 17.093 In stock
VT-13062 1.1/4 X 3.1/2 $ 17.421 In stock
VT-13063 1.1/4 X 4 $ 19.349 In stock
VT-13064 1.1/4 X 4.1/2 $ 21.770 In stock
VT-13065 1.1/4 X 5 $ 23.596 In stock
VT-13066 1.1/4 X 5.1/2 $ 25.423 In stock
VT-13067 1.1/4 X 6 $ 28.271 In stock
VT-13068 1.1/4 X 7 $ 29.640 In stock
VT-13069 1.1/4 X 8 $ 33.962 In stock
VT-13070 1.1/4 X 9 $ 38.209 In stock
VT-13071 1.1/4 X 10 $ 43.301 In stock
VT-13072 1.1/4 X 11 $ 47.632 In stock
VT-13073 1.1/4 X 12 $ 50.320 In stock
VT-13074 1.1/4 X 14 $ 60.618 In stock
VT-13075 1.1/2 X 3 $ 27.117 In stock
VT-13076 1.1/2 X 3.1/2 $ 31.765 In stock
VT-13077 1.1/2 X 4 $ 36.159 In stock
VT-13078 1.1/2 X 4.1/2 $ 40.673 In stock
VT-13079 1.1/2 X 5 $ 45.196 In stock
VT-13080 1.1/2 X 5.1/2 $ 49.710 In stock
VT-13081 1.1/2 X 6 $ 54.231 In stock
VT-13082 1.1/2 X 7 $ 63.266 In stock
VT-13084 1.1/2 X 8 $ 68.215 In stock
VT-13085 1.1/2 X 9 $ 69.484 In stock
VT-13086 1.1/2 X 10 $ 70.614 In stock
VT-13087 1.1/2 X 11 $ 76.594 In stock
VT-13089 1.1/2 X 14 $ 97.082 In stock

Prices per unit, before VAT. Availability is confirmed in the formal quote.

Can't find your reference? Need another size, grade or finish of this fastener? We carry over 12,000 references — we quote it via WhatsApp. Quote via WhatsApp

02Specifications

Materialacero al carbono
Finishnegro
Grade / StandardGrado 8
Thread systempulgadas
FamilyHex bolts

03Technical description

The Hex Bolt Grade 8 UNF Black is a hex head bolt for wrench tightening, used in machinery, mobile equipment and inch-thread joints with higher mechanical demand. TECTUL offers it in carbon steel, with fine-pitch UNF inch thread and Grade 8 specification associated with SAE J429. Correct selection depends on diameter, length, thread pitch, finish, compatible nut and actual service condition. The black finish differentiates it from black, zinc-plated or stainless references in the same family. In industrial purchasing it is advisable to validate whether the drawing requires full or partial thread, whether the assembly works under vibration, whether there will be outdoor exposure and whether material certificate or lot traceability is required.

Available sizeSale
1 X 10unit
1 X 11unit
1 X 12unit
1 X 14unit
1 X 2unit
1 X 2.1/2unit
1 X 2.1/4unit
1 X 3unit
1 X 3.1/2unit
1 X 4unit
1 X 4.1/2unit
1 X 5unit
1 X 8unit
1 X 9unit
1.1/2 X 10unit
1.1/2 X 11unit
1.1/2 X 14unit
1.1/2 X 3unit
1.1/2 X 3.1/2unit
1.1/2 X 4unit
1.1/2 X 4.1/2unit
1.1/2 X 5unit
1.1/2 X 5.1/2unit
1.1/2 X 6unit

Installation recommendations

  • Confirm that the nut and washer match the same thread system, grade and finish as the bolt.
  • Clean the threads before installation and avoid forcing thread start when there is misalignment.
  • Apply the torque defined by the designer, the installation procedure or the project standard; do not use a generic value without validating lubrication and surface condition.
  • In humid or outdoor environments, check whether the black finish needs additional protection or whether zinc-plated, galvanized or stainless steel is suitable.
  • When the joint is structural or critical, do not substitute grade, standard or length without technical approval.

We dispatch to Bogotá, Medellín, Cali, Barranquilla and all of Colombia. Request a quote via WhatsApp for the Hex Bolt Grade 8 UNF Black, indicating size, quantity, required finish and whether you need nut, washer or certificate for technical purchasing.

04Frequently asked questions

What is the price of hex bolt grade 8 unf black price?

The price depends on size, quantity, finish, availability and whether a certificate is required. Send us the reference or drawing and TECTUL quotes per unit for national dispatch.

What difference does this bolt have compared with UNC?

The main difference is grade, thread system, finish and application. They should not be replaced without reviewing drawing, compatible nut and mechanical demand.

How is the Hex Bolt Grade 8 UNF Black installed?

It is installed with a wrench or hex socket, using compatible nut and washer. The surface must be aligned and torque must come from the installation procedure or design.

Is it sold per unit or per box?

The commercial unit for this lot is per unit. For repeat purchases or high quantities, packaging, availability and dispatch times can be quoted.

What information should I send to quote?

Indicate diameter, length, thread pitch, grade or standard, finish, quantity, delivery city and whether the joint requires certificate or traceability.

Is it suitable for outdoor or corrosive environments?

It depends on the finish and the environment. For outdoor exposure or corrosion, galvanized, zinc-plated, stainless steel or another project-defined protection must be evaluated.

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Updated: July 22, 2026