Tie Down Rings

Ultra durable, high-strength tie down rings, studs & clips from an industry leader. We have developed a world-class line of tie down ring systems that are capable of performing reliably in various applications.

Features and Benefits:

  • All of our rings and studs are 4130 steel or equivalent with cadmium plate
  • Designed to supply superior strength in difficult environments
  • Ultra lightweight or super-heavy duty construction available
  • Made to function with a wide variety of plate series
  • Built to meet stringent qualifications and certification standards
  • Customized solutions to fit your unique application

Lightweight Tie Down Rings & Studs

PART NO. A IN./MM. B IN./MM. C IN./MM. Thread Length
FDC3100-11-2 .94/11 .25-28 UNF/.25-28 UNF
FDC3100-11-4 3.00/76 2A x.50F/2A x .50
FDC3100M12-3 1.38/35 .31-24 UNF/3A x .88
FDC3100M12-7 1.38/35.1 1.88/47.8 1.75/44 .31-24 UNF/3A x .50
FDC3100M12-9 .50/13 .31-24 UNF/3A x .32
FDC3100M12-15 .85/21.6 .31-24 UNF/3A x .60
FDC3100M12-17 2.00/50.8 .31-24 UNF/3A x .62
  • Ultimate strength – 2500 lbs. [1132 kg.]
  • Average weight – .15 lbs. [.06 kg.]
PART NO. A IN./MM. B IN./MM. C IN./MM. Thread Length
FDC4511B10 1.00/25 1.91/48
FDC4511B15 1.50/38 2.16/55 .625/15.9 .25-28 UNF/2A x .625
FDC4511B20 2.00/50 2.41/61
FDC4511C10 1.00/25 1.91/49
FDC4511C15 1.50/38 2.16/55 1.00/25.4 .25-28 UNF/2A x 1.00
FDC4511C20 2.00/50 2.41/61
  • Equivalent to NAS1211B and C Series
  • Average weight – .15 lbs. [.06 kg.]
PART NO. A IN./MM. B IN./MM. C IN./MM. Thread Length
FDC1210M 2.00/50 1.63/41
FDC1210M2 1.00/25 1.89/48
FDC1231M 1.63/41 2.13/54
  • Ultimate strength – 4000 lbs. [1814 kg.]
  • Average weight – .13 lbs. [.06 kg.]
PART NO. A IN./MM. B IN./MM. C IN./MM. Thread Length
FDA1658M-3 .85/21.6 .37-24 UNF/2A x .69
FDA1658M-4 1.64/41.6 2.14/54.3 .84/21.3 .37-16 UNC/2A x .68
FDA1658M-5 1.64/41.6 2.14/54.3 .50/12.7 .37-16 UNC/2A x .50
FDA1658M-6 .84/21.3 .31-18 UNC/2A x .68
  • Ultimate strength – 2000 lbs. [907 kg.]
  • Average weight – .13 lbs. [.06 kg.]
PART NO. A IN./MM. B IN./MM. C IN./MM. Thread Length
FCD3100 1.60/40.6 .31-24 UNF/3A x .48
FDC3100-7 2.30/58.4 .31×24 UNF/3A x .75
FDC3100-9 1.98/50.3 .31-24 UNF/3A x .48
FDC3100-9-5 2.72/69.1 .31-24 UNF/3A x .53
FDC3100-10 3.50/88.9 .31-24 UNF/3A x .50
FDC3100-10-2 1.44/37 2.38/60 3.00/76.2 .31-24 UNF/3A x .50
FDC3100-13 1.44/37 2.38/60 .750/19.1 .31-24 UNF/3A x .65
FDC3100M2 1.00/25.4 .31-24 UNF/3A x .50
FDC3100M2-2 1.50/38.1 .31-24 UNF/3A x .44
FDC3100M14 .62/15.7 .31-24 UNF/3A x .37
FDC3100M17 1.31/33.3 .35-28 UNF/3A x .87
FDC3100M17-1 .75/19.1 .25-28 UNF/2A x .50
FDC3100M21-1 .62/15.7 .10-32 UNF/2A x .50
  • Ultimate strength – 4000 lbs. [1814 kg.]
  • Average weight – .15 lbs. [.06 kg.]

Heavy Duty Tie Down Rings & Studs

PART NO. A IN./MM. B IN./MM. C IN./MM. Thread Length
FDC1950-3 7.50/191 .75-16 NF/3A x 1.12
FDC1950-9 2.75/70 3.58/91 2.25/57 .75-16 NF/3A x .62
FDC1950-10 6.00/152 .75-16 NF/3A x 1.12
  • Ultimate strength – 15000 lbs. [6805 kg.]
  • Average weight – 1.56 lbs. [.70 kg.]
PART NO. A IN./MM. B IN./MM. C IN./MM. Thread Length
FDC2610 3.00/76 6.00/152 1.00/25 1.12-12 UNF/3A x 1.00
  • Per MS21237-1
  • Ultimate strength – 25000 lbs. [11325 kg.]
  • Weight – 2.56 lbs. [1.15 kg.
PART NO. A IN./MM. B IN./MM. C IN./MM. Thread Length
FDC1540 3.00/76 4.00/101 .62/16 .75-16 UNF/2A x .44
FDC1540M6 3.00/76 4.00/101 1.00/25.4 .75-16 UNF/2A x .81
  • Ultimate strength – 7500 lbs. [7937 kg.]
  • Working load – 5000 lbs. [2268 kg.]
  • Average weight – .87 lbs. [.39 kg.]
PART NO. A IN./MM. B IN./MM. C IN./MM. Thread Length
FDC1422-1 .50/13 1.70/43 .90/23 1.12-12 UNF/3A x .75
FDC1422M1 1.00/25 2.00/50 1.12/28 .62-11 UNC/2A x .87
  • Ultimate strength – 10000 lbs. [4535 kg.]
  • Average weight – .68 lbs. [.30 kg.]

Tie Down Rings & Clips

PART NO. Clip No. D LBS/Kg Notes
FDK3171 FD3171 .193/4.9 C’Sink/.171 x 100°
FDK3171M2 FD3171M2 .189/4.8
FDK3171M3 FD3171M3 .098/2.5 C’Sink/.171 x 100°
  • Strength – 1300 lbs. [589 kg.]
  • Weight approx. – .07 lbs. [.03 kg.]
PART NO. Clip No. D LBS/Kg Notes
FDK4511A10 FD3429-2 .255/6.5 FDC4511A10/Ring
  • Weight – .14 lbs. [.06 kg.]
PART NO. Clip No. D LBS/Kg Notes
FDK3171M4-2 FD5022-2 .199/5.1 1010 Steel Clip
FDK3171M7-1 FD5022M .266/6.7 Stainless Steel Clip
  • Weight approx. – .06 lbs. [.02 kg.]
  • Legs close on assembly
PART NO. Clip No. D LBS/Kg Notes
FDK2850 FD3429/td> .255/6.5 Clip .095 Stock
FDK2850-3 FD3429-3 .380/9.6 Clip .095 Stock
FDK2850-4 FD3429-4 .286/7.3 Clip .095 Stock
FDK2850-5 FD3429-5 .312/7.9 Clip .095 Stock
FDK2850M1 FD3429M1 .375/9.5 Clip .125 Stock
  • Strength – 11,000 lbs. [4989 kg.]
  • Weight approx. – 27 lbs. [.12 kg.]

Tie Down Rings

PART NO. Material IN./MM. A IN./MM. D IN./MM.
FD5467-[] 4130/Steel .25/6.4 See Below
  • Dash number after FD5467 denotes “D” in. 1/16 increments [example FD5467-22 has “D” of 1.375]
PART NO. Strength LBS/Kg Weight LBS/Kg A IN./MM. B IN./MM. C IN./MM. D IN./MM. E IN./MM.
FD3682 5000/2267 .34/.15 4.19/106 .78/19.8 .25/6.4 .75/19.1 .38/9.7
FD3683 10000/4535 .61/.27 4.50/114 1.03/26.2 .31/7.9 .87/22.1 .50/12.7
  • Material – Forged 4130 Steel
  • FDC3680 includes Stud and FD3682 Ring [Assy. Str. 5000]
  • FDC3685 includes Stud and FD3683 Ring [Assy. Str. 10000]
PART NO. Strength LBS/Kg Weight LBS/Kg Material IN./MM. A IN./MM. B IN./MM. D IN./MM. NAS P/N
FD2486-1 500/227 .07/.03 1020/Steel 1.43/36.3 1.50/38.1 .24/6.09
FDC3540 600/272 .04/02 1010/Steel 1.35/34 1.16/29.4 .21/5.3
FDC4511A10 3600
1634		 .06
.027		 4130
Steel		 1.69
42.9		 1.13
28.7		 .25
6.4		 NAS1211A10
FDC4511A15 2100/951 .07/.031 4130/Steel 1.94/49.2 1.50/38 .25/6.4 NAS1211A15
FD2486-3 2400/1088 .100/.045 1020/Steel 2.12/53.8 1.88/48 .26/6.6
FDC4511A20 2500/1132 .100/.045 4130/Steel 2.19/55.6 2.00/51 .25/6.4 NAS1211A20
FDC4511A17 5000/2267 .17/.07 4130/Steel 2.32/58.9 1.75/44.4 .31/7.9 NAS1211A17
PART NO. Strength LBS/Kg Weight LBS/Kg Material LBS/Kg A IN./MM. B IN./MM. C IN./MM. D IN./MM. E IN./MM.
FD1497M25 3000/1360 .075/.034 4130/Steel 2.69/68.3 2.87/72.9 2.19/55.5 .750/19.1 .100/2.5
FD2442 5000/2268 .11/.05 4130/Steel 2.68/68.1 2.62/66.5 1.88/47.8 .750/19.1 .125/3.2