Question 1

Orientation – Is the DTI facing the right way?

Accepted Answer

For nut-side installations, make sure your stack-up looks like this: Bolt through hole; Squirter® DTI (bumps facing away from the steel); Hardened flat washer; Nut. Why it matters: If the bumps face the steel, they’ll dig into it instead of compressing. That stops the DTI from doing its job, and you won’t get a proper indication.

Question 2

Hole Size – Are you using standard holes?

Accepted Answer

Squirter® DTIs are designed for standard holes. If you’re dealing with oversized or short-slotted holes, you need to support the DTI properly: Bolt through hole; Hardened flat washer (to span the oversize or slot); Squirter® DTI (bumps out); Hardened flat washer; Nut. Why it matters: Without support, the DTI bumps can fall into the hole and won’t compress like they should.

Question 3

Wrench Power – Is your tool up to the job?

Accepted Answer

A weak wrench won’t crush the DTI bumps. Here’s what’s required: Impact wrench with ½” to 1-¼” bolts: DTI should fire within 10 seconds; Impact wrench with 1-3/8″ to 1-½” bolts: DTI should fire within 15 seconds; Continuous-turn wrenches: No time limit, but the wrench must tension the bolt fully without stalling.

Question 4

Hardware Condition – Is it clean or corroded?

Accepted Answer

Rust or corrosion increases friction, making tensioning harder. More friction means more torque and a higher risk of stalling or breaking bolts. Best practice: Use clean, as-delivered hardware. If that’s not possible, requalify using Stickwax or Molylube on the bolt threads and nut washer face.

Question 5

Painted Steel – Is the coating too thick or uncured?

Accepted Answer

If the steel is heavily painted or the coating has not cured, the DTI channels can clog. Fix it: Add an extra hardened flat washer under the DTI to separate it from the paint and restore a clear indication.

Métodos de Atornillado

Verificación Previa
a La Instalación

Squirter^® DTI

Indicador Directo
de Tensión (DTI)

Otros
DTIs

Método Turn-of-Nut
(Giro Parcial de la Tuerca)

Método de
Llave Calibrada
(Torque)

Tornillos de
Punta Desprendible
(TC Bolts)

Método Combinado

Folleto Tríptico (Distribuidores)

Especificaciones de Fabricación

Fabricado en Estados Unidos

¡Especifíquelo!

Métodos de Atornillado

Verificación Previaa La Instalación

Squirter® DTI

Indicador Directode Tensión (DTI)

Otros DTIs

Método Turn-of-Nut(Giro Parcial de la Tuerca)

Método deLlave Calibrada(Torque)

Tornillos dePunta Desprendible (TC Bolts)