01Designation
Standard and size
Identify the thread system and nominal size, for example an ISO metric designation.
Tapped holes delivered with the part.
Add an available internal thread to eligible holes, specify the size and usable depth, and receive the cut or bent part ready for fastening.
Internal threadApplied to eligible circular holes
Through / blindHole type changes tool and chip strategy
Wide selectionMaterial suitability is reviewed per part
Specified fitSize, pitch and depth belong in the order
Specify the connection once.
Select from the thread options available for the chosen material and thickness. Keep the nominal size, pitch, through or blind condition and usable depth attached to the same part order.
Metalldel checks the prepared hole, material engagement and tool access before production. This removes a separate tapping step after delivery while keeping the connection requirement visible.
Call out the complete thread designation and whether the stated depth is drill depth or full usable thread depth.
Four details define a thread Metalldel can review.
02Helix
Pitch
State standard, fine or other pitch explicitly when more than one option exists for the nominal diameter.
03Engagement
Usable depth
For blind holes, separate the required full thread from drill-point and tap run-out allowance.
04Approach
Entry and access
Identify required chamfer, countersink and tool approach, especially near bends or other geometry.
Available materials for threading.
Loading current material availability…
The exact thread sizes available are confirmed while configuring the part.
Choose the hole type and usable thread depth.
Open exit
Through-hole thread
The tool and chips can continue beyond the part, but exit clearance and back-side conditions still require review.
Controlled depth
Blind-hole thread
The feature ends inside the material and needs room for the drill point, tap lead and chip control below the full thread.
Engagement
Thin material
Available engagement is limited by thickness; another fastening feature may be better when too few threads can be formed.
From prepared hole to verified internal thread.
Specify the connection
Confirm standard, size, pitch, hole type and required usable depth.
Review the material
Select tap strategy, prepared diameter, lubrication and chip evacuation for the grade.
Produce the thread
Align and tap the eligible hole with the approved tool and setup.
Check the requirement
Inspect the thread according to the acceptance criteria agreed for the order.
Specifying threaded holes
What thread information should I provide?
Specify the thread standard and size, the hole location, whether it is through or blind, and the required usable depth.
Which materials can be threaded?
Metalldel supports a wide selection of materials. The live list shows the current eligible grades and thicknesses for online ordering.
How should I specify a blind thread?
State the required usable thread depth. Extra drilling and tap clearance is assessed beyond that functional depth.
Can threading stay with cutting and bending?
Yes, when the hole, material and geometry are eligible. Select it while configuring the same part.
Specify the thread before the part reaches the tapping station.
Configure an available thread or send the full designation and engagement requirement for review.