5 catalogued sizes, dimensioned to Trade series (PTFE thread sealing tape, colour-coded by density). Pick any row and the technical drawing redraws to it.
PTFE Thread Seal Tape to Trade series (PTFE thread sealing tape, colour-coded by density): the full dimensional table is reproduced below. 5 sizes are held in the table below, and the technical drawing redraws to whichever row you select.
Standard
Trade series (PTFE thread sealing tape, colour-coded by density)
Catalogued sizes
5
Dimensions are nominal values from the governing standard. Confirm the tolerance class for your application before ordering.
PTFE Thread Seal Tape — Trade series (PTFE thread sealing tape, colour-coded by density)
What PTFE Thread Seal Tape are specified for, industry by industry. Stocked from white to grey (inside diameter).
Industries that specify PTFE Thread Seal Tape
Gas installationGas-rated tape only.
Process plantStainless thread assembly.
PlumbingTapered pipe threads.
Compressed airFitting and manifold joints.
Hydraulics & pneumaticsStatic and dynamic sealing in cylinders and valve bodies.
Process & food equipmentSealing at joints that are cleaned and inspected.
Typical applications
using the grey filled tape on stainless to reduce galling
keeping tape off the first thread so nothing enters the line
wrapping in the direction the fitting will turn
choosing the colour that matches the service
sealing a joint against fluid or air pressure
excluding dust and moisture from a housing
Service conditions to specify against
Sealed joints
Used where the fixing has to keep water or air out as well as hold — the elastomer, not the fastener, decides service life.
Where to use something else
Do not use general-purpose white tape on an oxygen line; oxygen service needs tape that is certified oil-free, and this is a safety requirement rather than a preference.
Customize the parameters below — every spec field is editable, and the drawing redraws to match the values you choose. Changing the size will snap the other fields to that size's standard values; you can then override any individual value.
Sends the selected values to the quote form below.
Request a Quotation for PTFE Thread Seal Tape
The form below follows the current technical drawing configuration. Change the drawing values above and the request details update automatically.
Dimensions & Specifications (Trade series (PTFE thread sealing tape, colour-coded by density))
Every row below is a starting point for the customizer above — pick any size and the drawing will redraw to that row.
Colour
Density
Intended service
Notes
white
standard density
water and general plumbing
general purpose
pink
high density
water, larger threads
thicker, fewer wraps needed
yellow
high density
gas lines
gas-rated tape
green
oil-free, degreased
oxygen service
must be oxygen-clean
grey
with filler
stainless steel threads
reduces galling on stainless
PTFE Thread Seal Tape (Trade series (PTFE thread sealing tape, colour-coded by density)) are a type of seals used across industrial assembly. Below is the complete size table together with material, standard and application guidance.
What Are PTFE Thread Seal Tape?
PTFE Thread Seal Tape are seals defined by Trade series (PTFE thread sealing tape, colour-coded by density). They are selected by inside diameter and the dimensional characteristics shown below, and are available in a range of materials and finishes to suit the application and environment.
Materials & Finishes
O-rings and seals are specified by elastomer, not by steel grade: NBR (nitrile) for mineral oil and hydraulic service, FKM for higher temperature and aggressive chemistry, EPDM for water, steam and weathering, silicone for a wide temperature range in static duty, and PTFE where chemical resistance outweighs elastic recovery. Specify the compound, the hardness in Shore A and the temperature range alongside the dimensions.
Specification Guides
Each size, material and standard of PTFE Thread Seal Tape has its own reference page with the figures for that one configuration.
Goes With
Hardware commonly specified alongside PTFE Thread Seal Tape.
Pricing
PTFE Thread Seal Tape are supplied to order. Pricing starts from approximately US$0.35 per piece for standard sizes in standard nitrile (NBR) 70 Shore A; final pricing depends on size, material, finish and order quantity (MOQ applies). Submit your exact configuration with the quote form above.
PTFE Thread Seal Tape — Trade series (PTFE thread sealing tape, colour-coded by density)
This part is cold-formed, threaded, heat-treated and finished in-house. The stages below are where its class and finish are actually decided.
01
Cold heading
Wire rod is drawn to size and cold-formed into blanks. Forming rather than cutting keeps the grain flow continuous around the head, which is where a bolt is most likely to fail.
Head dimensions and under-head radius checked at set-up and per shift.
02
Thread rolling
Threads are rolled between hardened dies rather than cut. Rolled threads are stronger in fatigue than cut threads and hold pitch and flank angle far more consistently across a batch.
Go / no-go ring gauges to ISO 965 tolerance class 6g.
03
Heat treatment
Quench-and-temper brings carbon and alloy steel to the property class ordered — 8.8, 10.9 or 12.9 — with the furnace charge tracked so a finished lot can be traced back to it.
Core hardness and tensile tested per lot to ISO 898-1.
04
Surface treatment
Zinc, zinc-nickel, hot-dip galvanizing, black oxide, phosphate and Dacromet, selected against the service environment rather than against the price list.
Coating thickness and neutral salt spray hours to ISO 9227.
Frequently Asked Questions
What is the controlling standard for PTFE Thread Seal Tape?
PTFE Thread Seal Tape are manufactured to Trade series (PTFE thread sealing tape, colour-coded by density). The dimensional values on this page follow that standard.
What is the size range of PTFE Thread Seal Tape?
The table on this page lists 5 sizes for PTFE Thread Seal Tape, ranging from white to grey. Sizes outside the table can be quoted on request.
In which materials are PTFE Thread Seal Tape supplied?
PTFE Thread Seal Tape are supplied in NBR (nitrile), FKM, EPDM, silicone and PTFE, selected by fluid and temperature, with finishes including zinc plating, hot-dip galvanizing and black oxide. Choose material and finish to suit the load and the service environment for PTFE Thread Seal Tape.
How do I request a quotation?
Use the parametric drawing on this page to set the exact configuration (size, material, finish) and click "Request this configuration" — a specialist from Engineering Hardware will respond within one business day.
Need a fastener quote or a spec sheet?Message our engineers on WhatsApp — send a drawing or DIN number and get pricing back fast.Start WhatsApp Chat →
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